Thinking out loud here:

This announcement, plus the prospect of Thunderbird Enterprise, makes me wonder if perhaps Mozilla could begin to position itself as a kind of competitor to Microsoft 365, Google Workspace, and Proton Suite. They're perhaps the only company I can envision nailing the feature set of the first two, with the privacy and security of the latter.

If I could pay for a bundle that includes a hardened browser, a solid email/calendar client, a VPN, and email/calendar/cloud file storage (this of course is the thing that Mozilla is lacking), with all of it tied around my preferred browser, I'd certainly consider moving my company over.