Re: making notes
of course... but this is basically the same support model that Samsung / Huawei / HTC / Sony / Lenovo / ASUS / etc... pretty much all connected electronics vendors are using, so it's nothing new.
Phones, laptops, motherboards, smart TVs, connected vehicles .... you name it, once their initial warranties are expired they become obsolete as far as the manufacturer is concerned and it's no longer their problem.
Once warranties end for a model / year... they no longer publish any updates at all and after another year or two, when you unbox a "new, old stock" phone (or other smart connected device), you can't even get to install the updates they have already published in the past - this is because they have now nuked the server instance that was tasked with serving updates for that year of launched models.
In 2015, my less-than-7-months old Moto phone was declared by them to be "no longer supported" despite the fact it was launched in the same year at the Mobile World Congress in Barcelona (early march 2015).
Planned obsolescence at its finest.
I had to root it and managed to install LineageOS on it... it still runs today but is stuck with LineageOS 17.1 (Android 10) latest version is from february 2022, quite a good stretch, for a device launched in 2015 and abandined by its manufacturer during the same year.