Well, from my experience as the person who "babysits Jenkins" unless you appoint an actual owner for Jenkins, you'll get a real tragedy of the commons with it. Devops sounds cool and all but most devs want to write cool code: usually product features, not infrastructure stuff, so everyone will do CI/CD related work half-heartedly.

So in my obviously biased opinion, if your team is big enough, either get an actual build/release engineer/devops guy or appoint one of the devs as an owner for this, otherwise you won't get the best results.