Linux, Wayland: All IDEA windows become unresponsive when a newly (re-)opened project begins indexing

IDEA 2023.1.2 (build  #IU-231.9011.34) frequently becomes unresponsive when I have one project open and I open another (in a new window); it seems to happen when the newly-opened project starts refreshing its index. I've let it sit there for half an hour, and it never recovers; I end up having to kill it.

The specific projects and/or order in which I open them don't seem to matter. Sometime I can open the same two or three without issue, but next time I try all the windows freeze again.

Don't see anything very helpful in idea.log; it complains the index is corrupted when I open the project after the hard kill, unsurprisingly, but nothing else.

Any suggestions as to where I should look next would be much appreciated.

Linux (PopOS 22.04), Gnome 42.5, Wayland