Can’t help you with any of the other stuff, but to answer your 4k question: No, you still need your 4k collection for best quality. Upscaled 1080p is still 1080p, it just makes it not look wonky on a 4k display. Any details lost due to the source resolution will still be lost, you can’t create extra detail out of thin air.
How many times do we have to teach you this lesson, old man?
It’s the principle of the matter to me. Google became the multibillion dollar corporation it is by selling my data, your data, everyones data. To then come around and demand I pay to continue using their service the way I have for over a decade? But also still continue selling our data? Nah, fuck that. When they cut me in a percentage on the data selling business, maybe then I’d consider premium.
Pretty sure you can get an NACS adapter now, but otherwise non Tesla vehicles pre-equiped with a NACS port are due to arrive next year.