As far as I can tell, none of these changes are in code that is specific to Chrome, so yes, I would expect these improvements to also apply to Chromium-based browsers.
The only time that canabis helps me personally at work is when I am almost at a burn out. Smoking on the weekend (not while working) it gives me a fresh start the next week, well rested. Never helped me to be a better developer while high, actually for me it is the oposit.
In my opinion the problem is not always the touchpad(hardware) there are a lot of great ones. The problem relies on the driver integration with the os especially the interface. The animation and precision is so smooth in macos that at least makes Me think this hardware is far betteter then others.
Drivers may cause issues in some cases but I'm using a Magic Trackpad 2 with Linux on a Dell laptop, and the problem is definitely the hardware. The external trackpad works flawlessly, the built in one is terrible.
It could still of course be drivers I guess, but it would be a bit odd if it were in this particular case.
I have been using it for 2 yesrs now. Did not have any problem upgrading changing the version etc. Homebrew breaks things often. The App just works I never have to care about it.
I started doing Hijama (cups with complete toxic blood extraction idk if I described it well) every 3 months. They say it has allot of health benefits. The most amazing thing I experienced is sleep like a deer which I was not able to do and wake up with a clear head.