P
I guess this hasn't gotten anywhere... I need the exact same solution, and I see others asking for separation on speed dial configurations between machines.
I have a vast directory structure of bookmarks that I store under separate work directories per company, another separate home directory, and a rotating work directory that I keep refreshed with what's useful to me at the time. However, I keep going to work and having to re-locate the directory to set as my bookmarks bar, only to go home and do the same thing. This is very silly. I want to keep my bookmarks between jobs, not create a new Vivaldi sync account every new job separately from my home account.
+1 from me. Hopefully, this gets some dev time eventually.
P.S. Honestly, a global profile variable that encases all settings seems like the best implementation here. Load up all of the settings you want under separate "work" and "home" profiles: happy user.