I was aiming for, whatever may be your multi- Windows OS platforms scheme . . .
Make sure that the important Brave Browser data is backed up on each Windows OS platform.
Make sure all Windows OS platforms have the latest Brave Browser stable release version installed.
Because Brave Support will want to know that such improvements are an already-accomplished basis, from which to start - in other words, this information will save Brave Support’s time spent, asking questions, trying to get answers from you.
Workspaces as a topic, may interest:
That second link, includes some extensions that you might find helpful - including, Tabs assistance.