Hey there @merkaba48! So I’ve done a bit of research on this before, the default physics material isn’t able to be edited natively, unless you’re working from source. I’ve seen systems where users change all selected physical material overrides across the board. However you can also override them via normal materials, so if you had say a master material set for your project, you may be able to set the baseline there.
I mocked up a Blutility widget that would let you set all the overrides of objects you had selected, it’d need tweaks to be used on all objects though!