This was something I hadn’t thought of because it was so normal. Every monitor I ever had had the same problem of not turning on reliably. I’ve had Dell, Alienware, Samsung, LG, BenQ, etc. and all them of them had the same issues. When AppleInsider did a review of the Studio Display and Andrew brought up that the best feature was that it always turned on, a light bulb turned on in my head making me realize I’d been putting up with crappy PC monitors that all had the same issue whether I was using HDMI, DisplayPort, Nvidia cards, or AMD cards. Whether I was using Windows 10 or Windows 11 or even Windows 7 or earlier, they ALL had the problem. It’s not macOS either, since PC monitors attached to Macs also exhibited the problem of not reliably turning on.Sounds like a you issue tbh...
You get in the habit of not noticing because it happens so often and you dismiss it. It hadn’t occurred to me at all that it could be a feature until AppleInsider mentioned it as something that happened to him all the time. That’s when I realized I’d been having the same issues but ignored them. Think back and you might find you’ve been having the same problems forever but just mentally checked out of it as a problem.
It’s not a me issue. It’s a fundamental problem with monitors.