The Kanban book by David Anderson was all about this, but it never caught on like Scrum did. If I’m feeling cynical I think its because there were no certifications to charge for and no strange new roles for middle managers.
You need to use tools like OKRs and good old waterfall to manage multiple team projects.
I use the phrase “the illusion of predictability” a lot when I talk about Scrum. Sadly, some people really cling to that illusion despite overwhelming evidence that it isn’t real.
Dealing with anything social, the rules don't self enforce - they aren't gravity.