Thanks Wittaj!
I have decided over the GoPros, that the DJI OSMO Pocket 3 would be the perfect cam for front/main mic, as it has active tracking tech to follow singers/performers as they lean/sway/bob/whatever, and perhaps even a pair with another focused more wide angle to capture band from front.
BUT..I also want several (about a half dozen) fixed cams focused on other areas from other angles. Current plan is to build a cage around/over the 'stage', this cage would be either galv pipe or uni/superstrut, and support layers of other
tools, like monitors (as opposed to wedges on a stage), additional lighting, and these fixed cams. The corners of the cage can each have a power supply for their column of tools, and even the overhead beams can support lighting and a fixed cam over the drum kit, etc. (think Neil Peart, lol). Anyway, the moving cam sich has a resolution of sorts, but the fixed cams are unresolved. I think 2K resolution would be fine, need a 10-15 foot average length , adjustable field of view/zoom, and would prefer IP cams for their ease in power (POE) and simplified recording to NVR as opposed to futzing with batteries and memory cards in high/inconvenient places on the cage. Open to any more ideas...
edit to add: don't care diddly about sound, a soundboard will be grabbing all the mics and audio will be synced in post.