Simply isn't doing much work, account switching works just fine on GMail, search, maps, calendar etc. The issue is that some Google apps do not follow the standard of the overall fleet. Google gives us the account switching feature, it's obviously an intended way to use their products. Otherwise they would not give you that and tell you to use browser profiles.

I don't want my history, bookmarks, open tabs and login sessions at every website divided among my 5 GSuite workspace accounts and my 1 personal Gmail. That adds a bunch of hassle for what? The removal of a minor annoyance when I use these specific Google apps? That is taking a sledge hammer to a slightly bent nail.

If it works for you, great, that's why it's there. But doing this for anything more than the basic happy path setup of "I have one personal account and 1 GSuite work account" is nuts in my opinion.