What's the speed settings for the bottom layer that sits on a support interface?  

What's the speed settings for the bottom layer that sits on a support interface?

I'm trying to get some working profiles for printing PETG on PLA support material with my XL, and it seems that different PLA brands stick very differently.  I've been seeing a fair amount of print errors in the first layer or two of PETG that sits on PLA, and it doesn't appear that reducing the contact distance or decreasing the loop spacing really helps - it looks like the printer is sort of ripping the PETG layers off of the support it's only sort of sticking to because of speed/acceleration.

I know I can just turn down all my speeds, but the speeds seem to be great for other features, so is there a way to slow down that first layer over top of support interface layers?  Something like the percentage speed reduction used for the first layer on the print bed would be perfect.

As a side note - my first sliced models with this technique defaulted to the PLA heated bed temperature after the first layer (since then, they've all stuck with the PETG temperature) - is there a way to see in prusaslicer the heated bed temperature for the different layers of the GCODE or just for the whole time?  I didn't see it in the list of visualizations or the various stats around the interface, and it would be nice to check.