I'm assuming pros use their camera quite often but what about the rest of us?
I tend to go in spurts and the one thing that bothers me is after a few weeks of the camera sitting in the closest, once I pick it up again the controls, switchgear, menus, and dials have lost their intuitive nature.
I saw one video where the guy said he tried to take 27 photos every day to keep things fresh.
How often are you out shooting?
I love this question in the sense I was about to post the same question with the same qualification excluding people who make money with their camera which you refer to as as pros.
My answer specific to me is not enough for stills. I'm looking to change that going forward and have created a YouTube channel specific to using my Fuji X System gear to keep me honest. If I'm not putting up new content then it is not being used for stills.
I do use my X-T4 often as part of the video production gear for our 4 YouTube channels.
I realize that something like the Z9 is a pro camera but I can't imagine how long it actually takes not only to ramp up to using all of its features (30+ buttons and 4+ dials) correctly and in cooperation with each other, then perhaps using another camera for two weeks for whatever reason, and then going back to the Z9 and instantly shooting with it without any hitches.
I find that there is some weekly lose of memory, whether momentary or not, from not using a camera. After two weeks or so it takes a few shots or more to get back up to speed. Sometimes I'll just play with the menu system and adjust some settings without taking a photos to feel comfortable again. Scrolling thru the menu can help remind me of what I'm trying to do.