[Conan_Kudo]

SUSE used Teams for years (particularly under Melissa Di Donato, who made everyone use it). I used to participate in some of the community project meetings that wound up being on Teams because it was the approved solution they could use. It was the reason why the openSUSE Project deployed a Jitsi instance.

They do not use Microsoft 365 or Microsoft Teams anymore. They use Google Workspace just like everyone else now (the mail headers tell you that). I don't know anything about their workflows, though.

[TZubiri]

Stallman wouldn't agree, but in a FOSS spectrum, I think MSFT sits in the middle between FOSS and SaaS, at least they release binaries. With Google it's all SaaS.

I hold no horse in the race, but it seems that Google Workspace is a step in the opposite direction, you don't even have access to binary executables, and you can't self host much stuff, but hey at least you can export your data and make backups! (You can right?)

[Conan_Kudo]

Microsoft has effectively ended support for the self-hosted versions of the groupware stack. So between Microsoft and Google (since both are SaaS), I would pick Google. Especially as I've had to administer both solutions before, and I would never voluntarily choose Microsoft 365 ever again.

And yes, you can regularly export your data out of Google Workspace and there are tools that can process that data and use it easily enough.