10.10.2 crashes encountering m3u files while loading. can't post URL so: github.com/jellyfin/jellyfin/issues/13057
Seems like an upstream issue to me.
Fixed in 10.10.3: https://github.com/jellyfin/jellyfin/issues/13048#issuecomment-2484670588 Which is now in Gentoo: https://github.com/gentoo/gentoo/commit/58f6f0292cf80456fb36a36ce1a93e904184ac29