journalctl doesn't seem to report any GPU specific errors. nvtop shows no oddities that i could find.
i found that dragging the preview image on the fps showcase videos in nvidea's 4060 page makes firefox lag out with a glib-CRITICAL logged to the console. it says
(firefox:4349): GLib-CRITICAL **: 12:40:07.460: g_strv_length: assertion 'str_array != NULL' failed
[Parent 4349, Main Thread] WARNING: g_strv_length: assertion 'str_array != NULL' failed: 'glib warning', file /builds/worker/checkouts/gecko/toolkit/xre/nsSigHandlers.cpp:187
dunno if that has to do with anything tho
i'm on 550.107.02, the ubuntu-drivers command shows there are two 550 drivers one with -open after it, is that what you're talking about?