What percentage of your one-on-ones with direct reports do you dedicate towards their professional development?

Interesting result here.  I was once with an organization which did much of the work in 1:1 and nothing was on MS teams or done out in the open.  The result was what I called 'information insanity' where some people had some information, no one had it all, no one knew who knew what, and no one get any development or feedback.  

The proposed solution was that anything is shared in an MS teams channel so that everyone can stay on the same page.  When work is done in the open like this, the work can more forward but the 1:1 can be freed up for individual development and solid connection

I try to have a "development-dedicated" 1x1 every month with my directs.

I tend to spend most of our 1:1 time on Professional Development, unless the employee wants to talk through where they're at with their work and needs/ wants help. I try to make sure that people on my team use their current role/ work as an opportunity to develop themselves for their next role (while still delivering quality work). Together we think about what are the hard and soft skills needed at that next level, and determine how we can apply then today. If they've truly maxed out, then we'll talk about mentorship opportunities and other next steps

I would hope that every discussion and project review helps people develop. I do coach for development on a sliding scale. I spend more time on it early in the year when it seems we have more time and less time on it as due dates for projects and goals are nearing.