I think your problem is NOT PETG but rather printing in general.
Entire print all around looks like crap and you expect it to bridge nicely ?
Good luck with that.

After years of printing i made up one rule:
Rule #1 If you cant get 1st layer perfect, dont bother printing the rest.
Rule #2 Obey Rule #1

Your prints look like crap at 1st layer, why do you even continue with the test ?

My PETG prints came out better then ABS or PETG.
With little FAN it makes it look even better.

There is a number of problems i am having since the day i tried mattercontrol for the first time.
After i dial my favorite settings i get confused what to save, Quality or Material ?
I made many changes allover the Slice settings and which once save what is a mystery.

It appears to me that both Quality and Material have their own effects on Slicer settings and thats confusing.
Not only that, but some settings they control have NOTING to do with either quality or with Material.

Life would make more sense if there was one "Slicer Presets" that effects all the options below instead of everything else.
With only ONE thing to worry about, managing presets would be allot easier even from a programming stand point.

There is "Slice Settings" tab that allows you to pick "Quality" and "Material".
If i select "Quality" looks like "General" settings are effected.
If i select "Material" looks like "Filament" settings are effected.

Problems with "Quality" presets
Infill type or density or number of layers as number of perimeters are NOT quality related settings. The ONLY quality related settings in 3d printing is layer height and nozzle diameter. Everything else are tweaks to make model look or feel the way you need.

Problems with "Material" presets
These effect cooling parameters but do not enable cooling. Nonsense.
It effects retraction parameters but not enable retraction. Nonsense.

I have a solution but who cares ?

I ABSOLUTELY have to have retractions to happen mostly everywhere but there are 2 places where retraction is a WASTE of time.
#1 Infill. Not bottom/top fills but once in between. There is no need for retraction UNLESS crossing a perimeter, in which case preventing crossing a perimeter can be used.
Crossing perimeter prevention option could also be specific to infill area, which will add another benefit to the tweaking mechanism.
#2 Support.
Not entire support does not need retraction but only whats between 1st and last layers of support, much like for infill.

I am printing a model that has 20% infill. I need retraction to happen if travel is more then 2mm. When infill is printed, allot of retractions take place because there are allot of places where travel >2mm takes place.
Is there a way to stop retraction or maybe have retraction settings independent for infill ?

When you call something "Material" i am logically assume parameters such as:
Weight, price, diameter, maybe temperature too, yet "Material" reflects slicer settings that have no business being in the "Material"

Essentially what Matter Control has is "Slicer Settings", not "Material"

Same thing with "Printer"
Selecting another printer brings up its own set of materials that are not shared.
I have to duplicate materials in order to print with same "not materials but slicer settings" on another printer. And if i happen to need a small change, i have to make that change on both materials now instead of one.

It would make sense to be able to just pick the printer on which model will be printed on without the need to re-import the model specifically for opened printer in a new workspace.
Just print printer from drop down menu and re-slice. BAM !

I know understand Coast does and why. What i dont understand is why it has to coast in opposite direction at the travel speed. At the very least it could coast toward same direction.
Print speed: More settings ? There is too many already. The very basic one "Print Speed" is missing.

Do you have a link to that file ?
I'd like to look at its topology.

@grc said in Retraction issue:

and

Look into minimum extrusion required for retraction.
I set mine to 0 so it will retract strictly based on distance traveled.

If i set it to 10mm of extrusion, even if travel is far enough, it will not retract because it has not extruded 10mm PRIOR to that move.
See ?
I hope that helps.

Please forgive me for my none constructive criticism. I tried my best so here i go.

Coast at the end:
Is there a reason for [Coast at the end] to go in reverse direction ?
Sudden direction change is not only bad for the print, its also bad for the printer.
Imagine going one direction and then suddenly go back at 150mm/s travel speed ? Thats nonsense.
Coast should be at either print speed or at travel speed (optional) toward same direction. (This feature is known as combing in Cura)

Perimeters:
Inner/Outer perimeters change print direction. Why ?

Print speed:
Where is fundamental setting for [Print Speed] ?
I see allot of other parameters. I dont want to change 9 parameters to change entire print speed (except for travel)

Material selector:
Does it work at all ?
When i select different material, the only thing that i notice change is Outside Perimeter. Everything else including temperature stays the same.

Where is the "Save" button when i edit material properties ?

Are Material presets act (in theory) like printing parameters presets ?
So why not just name it "Presets" instead of materials if they effect (not at this point they dont) printing parameters such as speed etc ?

Export printer:
Exports .printer file containing excessive data, data that has nothing to do with the printer but rather print settings such as layer height, skirt distance, retraction settings etc, even materials.
So its not printer information, its printing information or what ?
Can this be imported ?
Does it import print settings with it ?
I am very confused here.

Any feedback on that ? Thanks guys.
I have allot more but i will keep them to my self for now.