You can include me in that list. All the way from Windows 2.1 to EOL for XP... (
Jeez. 26 years.....Gack!!)
The difference with me was that, when
I moved to Linux, I was absolutely fed-up to the back teeth with Windows, and was more than ready for a change. Until I Googled "Free operating systems" on that fateful day in the spring of 2014, I had no idea there were so many to choose from!
I downloaded Ubuntu, wiped Windows out of my life, and dived in head-first. Sure, there WAS something of a learning-curve, but nowhere near as steep as others had made out (at least, not for me).
I adapted fairly quickly, and thoroughly enjoyed being in control of my computing for the first time in a very long while. I moved full-time to 'Puppy' in mid-2015, and have never looked back.....
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With regard to Chrome, the OP does in fact have quite a wide choice here. Many browsers use the Chromium code-base, and thus have access to the App Store. This gives the choice of
Any of these will be able to access, install and make use of whatever extension the OP wishes to run from the Chrome App Store.
Mike.