Wow, what a short-sighted view. Android, despite its many shortcomings, gives you orders of magnitude more freedom in almost every way imaginable. And none of its shortcomings are blocking you from using it, rather more or less annoy you.
Renault seems to be doing good with their new lineup. Stellantis on the other hand - not as much. I don’t know of a single model of ev of theirs I would want to buy if I were rich enough to buy a new car. I thought maybe fiat grande panda, but it is priced exactly the same as Citroen EC3 and in that segment, it’s not appealing to me at all. All of their cars share the platform with an ICE car, which includes the grande panda. They are simply not competing with Renault at this point. I hope 2CV will change that, but who knows when it’s even gonna be available.
I’ve never tried it, but there appear to be some rsync apps on f-droid, you could try.