I've turned off find my device on my device.

Although, I am still using 17.7.2 that won't stop nagging me to upgrade to iOS 26.2.

I don't want to because I know I'll hate it.

you can kill the ota nagging very easily without any side effects, try searching for tvos profile

	▲	MonkeyClub a day ago \| parent [-]
		Wasn't aware of this, thanks! Also found out that the profiles also expire, so you need to update those in order to skip the update nagging. Apple's lolling all the way.