There is also BigBlueButton if you are looking for another similar project.

Some Fdroid Version may have less trackers or replace Google Services(Signal-FOSS/Molly or Telegram for example use a own push service)

My first step is always to add the Molly and Bitwarden repos.

Few years ago(maybe 10) it was still recommended or even necessary to use IE for a lot of goverment Internet Services here in Germany. The online Zoll handling for example. I think a lot of goverments are not really into accesibility optimization.