They don't all grow the same, so whatever method you devise, have some adaptability built into it. I treat stocky plants a bit differently than lanky plants.. all to help keep things level and properly filling the area.
So, if the axilla (branches) beneath aren't going to be part of your canopy, definitely prune them off. Try to keep the leaves at the nodes.
If you just flipped, i'd prune and leave the last ~3 nodes, but don't prune leaves off with the lower branches...
if into flower already, leave a bit more .. what you'd expect to grow in that time since flip. If you get too much axilla in 2+ weeks, can always remove a few more lower branches as needed. I like to most of the cleanup before flip to flower and allow 3-5 days to heal.
Pruning stuff off after bud sites form isn't going to redistrubute resources very well. Better to prune to a point that only requires minimal lolipopping later as necessary. You can clear out the lower growth in waves earlier on in vege phase, too... you know where the scrog will be before you even set it up. Try not to take off more than 33% of the plant in a sitting, and time to heal between.
lots of ways to skin this cat... Trial and error.. adapt what you do based on results. It'll be a well-formed habit quickly if systematic about it. Take some notes... it can be 3-4 months before you do it again. Easy to forget details or intended tweaks. Once it's a habit, can throw the notes out :P
Check out my 2026-1 diaries. I did a decent enough job on timing when i let them go vertical and still fill in the space completely. Less pruning required / less vege time with same yield. Still tweaking that process slightly. It's in a bigger tent, but the canopy is only intended to be 32-35 sq ft. 8 plants, 10-12 vertical colas each. If you don't over-crowd, shouldn't have to prune much at all after flip...