The ads come at different entry and exit points for every user.
They’re not referring to the YouTube ads, but the “let’s take a minute to talk about today’s sponsor nordvpn that I used on my trip to Antarctica.” This is a part of the video file itself, and it starts and ends at the same time for all users.
I had to get a new battery for my OP6T after using it for over 5 years - exclusively charging it using the fast charger. I’m sure that I can get another 3 years out of this phone, at the very least.
The battery + replacement service fee was around 40 USD.
I don’t expect much more from the battery TBH.