This one should work via bluetooth, some pages online indicate so, and it would be very rare that a bluetooth mouse does not work on linux.
And it should absolutely work via the little usb dongle that came with the mouse, as for example my logitech wireless mouse even works in my uefi/bios with the usb receiver.
Mastodon’s CTO, Renaud Chaput, offered this clarifying comment on Hacker News:
Our operating structure is still the Germany-based Mastodon gGmbH. The new US non-profit is here to facilitate fundraising in the US and promote Mastodon there (plus maybe one day pay developers directly, if we hire in the US).
"We value our customers privacy"
"Privacy is our top priority"