"Linux users shall not be using Chrome" Sir Isaac Newton.
Interesting, do you have any devs communication about it?
I really don't understand the reasoning. Obviously wine works only on Linux, it converts Windows calls to Linux... And there are Windows devs targeting proton compatibility specifically?! In my opinion proton could somehow helps devs realizing that there could be a Linux market but that doesn't go further than that.
The best engineer in the world can only come up with the most important discovery in human history....
It's not, today it works flawlessly, every distro has a simple way to install the proprietary drivers. It's just stories from people repeating a very old song that has no anchor in today's reality.
Security? Qubes! https://www.qubes-os.org/