3DPrinting

You don't want multiple layers as it will lift and cause adhesion issues. The action of heating and letting it cool once is stressful enough on the material. When you create a second heating, while there is a temperature gradient present already, that will create the stress that lifts edges.

Really dial in your first layer settings. The hack is to just use elephant's foot for the first layer, but you are not actually dialing in your flow and squish. If you take the time to dial in the first layer well, your supports base layer removal should improve. It is possible to get a first layer printing like glass.

Also, you may have a setting to increase the bed probe resolution. That may help if the first layer is not even.

3 things that help me with PETG when it comes to separate it from the plate:

1. Glue (yes, really)
2. Cooling it off (sometimes putting the plate with leftovers on the freezer)
3. Olfa scraper (at a right angle to not scratch the plate)

What material and what kind of plate? PEI textured plate or smooth plate? PLA, PETG, something else?

@neidu3 Looks like this is an open feature request
https://github.com/prusa3d/PrusaSlicer/issues/9448

If you can't find what you are looking for, try using blue painters tape or glue stick

petg on texture without glue?

This looks like a small print, suitable for experimenting. Try tilting it 45 degrees so that it is tilted against the bed. It won't have much contact to the bed but may need way less support and the layers may even strengthen the print.

I'd tilt it so that the flat backside faces towards the bed but do try various versions, see how it goes and also evaluate strength

Edit: oh... Hadn't seen the frame around it 🤦