I honestly haven’t played my PS5 for a while but I picked it back up for Spiderman.
90% of the time I try to wake my PS5 from rest, it shuts itself back off.
Sucks.
Guess I should only use it for charging controllers and downloading games.
Got it.
Have you got any storage devices hanging off the back via a USB drawing excess power? Or do you have a NVME SSD installed in the console? Or are these network games that have been paused, with your router losing internet connection while the game was in rest mode.
Mine has been fine after the first few months of firmware updates, but my PS5 has only one pad attached by USB, and has no NVME upgrade, and is plugged in via a clean power feed via an UPS.
I'd check your power lead hasn't come loose at the back somehow, despite if it looks fully connected, or check you haven't accidentally connected to a tuner that has a hdmi port expecting to carry power.
Maybe try disabling hdmi CEC on the PS5 as it might be the TV or a tuner causing the shutdown.