That’s right. The user (or administrator if it’s a work machine) installs or removes acceptable certificates into firmware database. Typically a device you buy in the past 15 years or so comes with Microsoft certificates preinstalled, but it doesn’t have to stay like that.
His wealth is mostly imaginary. It’s how much his companies are “valued” in stock exchange. Tesla being worth 6x Toyota or 30x VW makes no logical sense, they no way that kind of sales, but shares get bought and sold at insane numbers.
Now unfortunately, some of that wealth is real, plus imaginary wealth still wields a lot of power.
First step is to figure out if you have hard requirements i.e. specific software that you rely on your studies or work and cannot be replaced.
If there is no such requirements, or your requirements have Linux versions, best thing to do is do the jump and accept the struggle until you figure out the new way of working. A lot of games run fantastic. Heroic Launcher for GoG and Epic games, Steam for Steam.
You need to edit a video, just search for “Linux video editor”, same for whatever task you want to achieve.
Ooh fediverse drama. This is why I’m here for!
The trick is not to think about, anything ever