Jitsi, Facetime had or has similar feature too with a link

Signal account required to join I guess ?

The apps I wanted to share

As far as I understand, you kinda choose better security using Chromium or better privacy using Firefox with addons/forks

Lot of ressources say Brave is trash compared to Ungoogled, but Brave still adds stuff

Complicated, GrapheneOS recommends Vanadium or at least Brave on mobile