I tried the upgrade to 24.04 yesterday but it completely broke plasmashell, causing it to segfault when run under my user. Good thing backups are a thing!
I’ll soon try Fedora 40 on my PC and see if this works on there.
On Fedora 40 it just opened immediately, but complained with an error message that was blinking in and out that the mic was unavailable, no matter what mic I selected.