In the not-too-distant past, a xorg-x11-drv-intel update reverted back to
default dri2 because dri3 was to unstable and too-often resulted in
plasmashell freezes, see also:
A new update came this past week turning dri3 back on,
Please help test this if you are able.
For *me*, it's pretty good, but I've now experienced at least 3 plasmashell
deadlocks (when left idle and screen off) similar to past results when using
dri3. And... oddly, chrome seems to freeze similar to plasmashell sometimes