Maybe they just did a poor job with that model? You have way way way more issues with your brand new designed for linux machine than I do with my 2015 thinkpad which has basically none of those issues.

Granted the only video conferencing I've done is google hangouts or facebook.

Needing to restart applications when switching monitors seems particularly strange.

Edit: Ubuntu non lts and gnome anything after 2 have been mediocre bug factories for a while. It's not too shocking to find they still are.