Window control buttons on the wrong side and/or strangely styled

At least three snaps have weird “window control buttons”.

Two, slack and bitwarden, have the control buttons on the left side. One, “beekeeper” seems to use a totally different style for them alltogether. I am using vanilla Ubuntu, no weird configurations, or themes, just normal Gnome, which has these window controls on the right and usually styled consistently.

I’ve filed a bug report against bitwarden, but they have a hard time reproducing it.

  1. Why do I see such issues occurring in snaps far more often than previously in "deb"s?
  2. Is this caused by snap in general, by my snap setup (e.g. existence of base snaps) or by the person building the snap?
  3. Is there somewhere I can point the software developers to so they can fix this?

As we can imagine, a development team like that of Bitwarden or Slack has such “snap specific issues” very low on their list. Resulting in a lot of small, inconveniences but added up, in a very poor experience for both me, the user and for the snap-provider as they must learn details of the snap procedures in order to even reproduce these issues.