… I have an old PC … almost 10 years …
For much older hardware, an Ergo Vista 631 with 2008 BIOS/firmware: <https://bsd-hardware.info/?computer=3a7d355eebe4> – I don't recall any issue with sound when tested with FreeBSD 13.0.
… what is an alternate to Gnome desktop in FreeBSD?
In particular: <https://forums.freebsd.org/posts/544052>
Cross-reference your post in Reddit: Looking for a substitute for Gnome-41 desktop in FreeBSD : freebsd
… And, if the WM supports Wayland too?