

Yeah, I work in a making very high end scientific equipment. Almost almost the whole operation runs on Linux. All laptops are refurbished Thinkpads, and most desktops are pretty old and slow from a maimstream POV, but they are just fine for the task, and then some. My “new” laptop I got last summer is a 2018 laptop which cost 300€ refurbished.
If I can do decent science on that, I’m not sure what everyone else needs a 2000€ machine for.
I’m sure someone does, but I expect really they’re few and far between.
What you read is true, and also total nonsense.
There is not too much point in discussing privacy and security without a threat model.
So once you put your threat model into focus, you can discuss how to mitigate those threats and pick the right browser for you.