Do cars have SIMs inside them that have free 4G/5G access and can send information that way?

Yes, most modern cars do. At the very least those with Infotainment systems. They pull updates and traffic data that way (and a bunch more).

I know we are in a privacy community here, but i personally would question what you are trying to do here. Don’t get me wrong. Staying away from Tesla and other Companies that are trying to sell heated Seats as a Service with a subscription to wipers or such is certainly a great idea. But beyond that, i don’t think there’s too much to worry about. My 2022 Kia Ceed has a build in Infotainment system and some sort of internet connectivity. And if Kia wanted to, they probably could track where i drive. But at the point where you are carrying a phone, i’d worry much more about that than about my car. Ripping out Radio antennas probably doesn’t do a whole lot. And depending on where you live, emergency location information provided by the car might be mandated by law. Skipping infotainment systems also might not help. Most manufacturers build more or less one trim level and enable/disable features you pay for. They might not bolt the display in, but the Computer behind it is probably still there to some extend.

At least in the case of Kia i haven’t found anything in their privacy statement that suggests they are collecting data from the car beyond what they read out when you bring it in for service. I’m no lawyer and am not sure if they have different privacy policies depending on the country you’re in, but it’s good enough for me.

Depends on Load. Realistically, one of the used “Mini PC’s” from Lenovo or HP with an i5 and integrated graphics should be decent for a couple of concurrent streams. They are pretty cheap on ebay. You could even get 3 or 4 and cluster them in some form. But most SBCs won’t work too well since transcoding needs a decent GPU of some sort.

On Desktop, 100% yes. On Mobile, Browsers in general suck pretty hard, and i often much prefer the app. If only for Notifications and recent apps being easier to manage than tabs.

Currently i’m on Arch. Mostly because it’s the easiest option for me to get a Plasma Desktop that’s up to date. KDE moves so fast nowadays, that i want to be on the edge.

It’s pretty easy. He’s been lucky with the work he did (stole/claimed) once or twice in the past and ever since everyone is eating the BS he says. Twitter is only one thing. Hyperloop, SpaceX etc. are all Ideas a 9 year old would come up with and are so out of reality it isn’t even funny anymore. Or remeber when he was reinventing the Metro, but worse?

He has be so rich so early in his life, that he never had to grow up. He then surrounded himself by yes-sayers and was lucky with how Tesla turned out (in that it got evaluated like a tech company, rather than a car company). Ever since he can’t fathom the idea that someone might know something he doesn’t. He also can’t grasp the idea that money can’t solve certain problems. His twitter posts show how little self control he has and most of it reads like things my 5 year old nephew would say. It’s insanity.

I’ll be honest: I always prefered the “new Reddit” over the old one. With that said, the App sucks balls and it going public (as it always does) killed reddit within a few days. Now we just hope lemmy catches on and fixes some of the inherent issues with decentralization.