Apple Watch seems to turn itself on?

I am a NOT heavy “ user” of my Apple Watch (have had 3, SE - 1, SE -2, and now brand new 13. I am massively into sparing the battery, and so turn the watch fully off early in the evening, and then turn it back on mid-morning. When this works, 95% of the time, gives me HUGE “savings” on the battery to the point where I can close to 3 days between battery recharge.

LATELY, not sure since which software update, occasionally wake up to find the watch has turned itself back on. Called Apple support, they checked their DB and found no other reports. I DO see here several folks have reported this. Anyone else have this issue? Likely will head into an Apple store to get this addressed. Just like the iPhone, given not great battery life between recharges, am committed to continuing this. I even started using shortcuts on my iphones to switch the phone into “ airplane mode” since noticed even with background updates turned off, typically saw as much as a 10% drain, which Apple reps said was “ pretty typical due to ll the things the phone does while not actively being used…