When I first started as a technical people-manager, like many developers, I'd never really seen the value of 1-to-1s.
Over time, though, I've iterated on how I view and run them so that they're more valuable as a feedback mechanism for both me and the people in my team.
On reflection, here's a few observations and practices that I've found helpful - hope they're as useful to you as they have been to me!
Please do share your own tips and tricks :)