This is a consistent theme on this forum. I subscribe to it myself because it intuitively makes sense. However, I've never seen the phrase "low round count" quantified.
My main carry gun is a full-size PX4 G, and my practice/training gun is a PX4 F converted to decock-only. I've run a couple hundred rounds of my carry load (124-grain HST +P) through each with no problem. I've got about a thousand rounds total through the G and maybe 6-7k through the F. The G gets field stripped, wiped off and re-lubed about once a month just because. The F gets cleaned when/if I think about it. It's been a few months since I've shot the G.
Is there a consensus on how often the carry gun should be shot to confirm it's still good to go?