I propose retiring multimedia/gnome-twitch. The GH thread at [1] makes it fairly clear that since Twitch API change in 2020 [2], the project is dead. The last commit on their master branch was in 2019, and the last release version was in 2018.
[1] mentions streamlink-twitch-gui as an alternative [3]... note a quick look shows this is a JS project involving monsters like node and chromium... ok to send gnome-twitch to the attic? [1] https://github.com/vinszent/gnome-twitch/issues/402 [2] https://marc.info/?l=openbsd-ports-cvs&m=159993943330292&w=2 [3] https://github.com/streamlink/streamlink-twitch-gui