is there like a competent antivirus i could use: the system is freshly installed and i havent used any shady software;
There are several antivirus solutions for Linux, but you shouldn't need them if you do not execute stuff you downloaded outside of your package manager. The maintainers of your distribution are supposed to check if their packages contain viruses.
I trust them, but I just want to have it by myself.
You do realise you can selfhost Forgejo and you do realise Git is actually distributed? You can easily mirror repositories on multiple instances or even your home computer.
If you buy a game and they stop updating, maintaining or even keeping the mandatory online services, the publishers are making your game worse. The quality of a digital product shouldn't degrade over time. You should get what you paid for. It wouldn't hurt those companies to make people able to run servers themselves.
There really has to be some warranty for digital products, like you have for tangible products. Software companies shouldn't be above the law.
Yes, and the business practices of the company making it which broke my trust to the point of me assuming they wouldn't be above breaking the law in compiling spyware or other malware into their closed source product for profit.
Brave is known to take privacy (and security) more seriously than its contenders.
Nice, their marketing works. If you really cared about privacy you'd probably use something like Librewolf, which is not proprietary.
Excellent extensions like uBlock Origin heavily rely on Manifest v2 in order to do their bidding. Unfortunately, Chromium intends to stop supporting it.
It works without issues in Firefox and similar browsers like Librewolf.
Here's a list of good YouTube content I enjoy which I update regularly, even with stuff I personally do not have subscribed to but what was heavily recommended to me by other people:
Only kicks upwards, not downwards. Has a backbone and principles. Doesn't value money over meaning. Likes to teach people instead of putting oneself over them.
Wait until the phone app on your phone crashes. It's been evident to me that phones in the future might not even have a phone app.