Perhaps you interpreted my comment as that one
must self-host, versus what I intended which is "you can use theirs, or you can use yours, depending on your paranoia level". I thought to include that distinction because some folks believe that Chrome is merely a data exfiltration and ad delivery vector created by the biggest Ad Tech on the planet and therefore don't trust them to be good stewards of arguably the most sensitive thing a modern user creates: browser history
Of course one can just use Firefox Sync out of the box <https://support.mozilla.org/en-US/kb/sync>; even Mozilla has not yet stooped so low as to require opening a terminal just to use Firefox or its Sync component