I would abolish mandatory updates altogether. Supprort it as long as you want.
However, once you stop support, you are required to unlock everything, release all manuals, materials and source code so that 3rd party providers can pick up support if they want to.
Shockingly, when I travel abroad I'm usually out and about for the most days. And that's where power bank is needed.
If can't have them in my checked luggage and and I can't have them in my carry on, am I expected to buy a power bank every time I fly and then throw it away?
On the topic of in-seat charging ports: your luck may wary. Even if you do find a plane which has these and they actually work, the power is not usually enough to charge more power hungry devices - bigger phones, tablets, steam deck. Don't get me started of you actually want to use your laptop during the flight.
Yes, if you fly business there are usually power sockets which you can use, but who has money for that?