Weekly standup to check in with devs, leave them alone otherwise. Reach out if a high priority item comes up, but 9 times out of 10 that can be an email.

I've heard that one of the benefits of agile is identifying blockers and encouraging collaboration, but I saw much better results from assuming you've hired intelligent adults with work ethic and letting them reach out and collaborate as needed. Daily standups, sprints, boards, planning, etc. are great in a low-trust environment where you can't be sure people are doing the right things. But if you've hired self-directed people, that stuff just gets in the way.

There's a balance. Not every team is made up of infallible devs, even at decent companies. Human nature is never full-trust.

I've known talented devs who are great people who still need more oversight than you describe. Usually they are ~5 years off from being full-trust, yet still valuable team members. Yes they benefit from daily standups.

I'd argue they'd probably benefit more from 1-1 mentorship, and as a bonus you don't have to force your entire team to adopt agile.