I doubt it works on Safari (it won't let me talk). If you ask why I'm on Safari, it's because I couldn't grant it microphone access on Chrome (for unknown reason).
In the UK Microsoft Teams has become the de-facto business video call standard, but aware this is different in other parts of the world.
And you will need Word and PowerPoint anyway if you want to easily and properly interact with other companies without compatibility issues (try sending contracts with redline back and forward with comments and tracking between Google Docs and Word!). Sure you can operate with Google Docs using LibreOffice as well, but in my experience it's just not as friction-less as O365 and actually for what you get it's great value.
On the other hand, I find Teams video conferencing to be pretty good for video meetings. Once you get to a certain number of people, Zoom starts to do better interface-wise, but for a useful number of participants Teams has been relatively friction-free for me.
Also, if you have a slightly older workstation, your tab on which teams run will definitely crash. Mostly.