You can trademark dictionary words.
You can't trademark anything too generic, like you might struggle to trademark a drink called "drink" or something (although you might be able to trademark, eg, shoes called "drink"!), but there's nothing stopping you trademarking words.
Oh, and, Adobe is an english word, too.
It's not subscription business models that will be affected by this, it's ad-supported ones.
The problem is you're running Chrome now*. Google are in the process of severely restricting the mechanism by which adblockers work in Chrome and its derived browsers - so it's happening now. The only viable alternative left is Firefox, if Google manage to get this proposal past then there's nothing stopping ad-supported sites from forcing you to use Chrome or another browser they know they can serve you ads with. Those types of sites are already comfortable with aggressive anti-adblock tech so no doubt they'll be comfortable with this too.
Switch to Firefox!
* statistically speaking!