Additional features, settings, or issues not covered by specific Microsoft Teams categories
Very similar issues this end (as well as a lot of first party add-ons not working properly and causing loss of data - but that's another thread).
After taking MS recommendation to move the team up to MS Teams from Skype for Business (without explaining that there was no cross compatibility between the two - alienating us from our clients and offering no solution to roll back) I have found that Teams uses too many resources to be a function addition to our day to day work environment.
I'm genuinely dismayed by the whole roll out process and clearly many other agree. I would suggest rolling back the aggressive policy of forcing the use of Teams over SfB until this is resolved.