"a lot of others" seems unsubstantiated. I'll argue the majority of folks (even technical) rarely need access to passwords outside of the browser. The only times I need a password outside of chrome is my Macs password, and dockerhub but I've memorized just those two.
Occasionally I need the password for Microsoft or intelliJ accounts, but even then I just use my phone to lookup the password in my manager visually and then type it, I'm never letting any password I care about go into my Macs clipboard!
Typically the non browser based passwords are one-time entries anyway - how many times have you had to enter a steam password? And most browser based managers provide an app as well.
The bank pin is more common, steam and other apps not very frequent. The less frequently you type in a password, the more you need a password manager, though. I also tend to store numbers like national insurance (it's a number not dissimilar to social security number), credit cards and such in my password manager (keepass).
I do agree you can open your browser up and check, if you have that handy. But I'm happy with not having to open a full blown browser to get to my secrets and not sharing even my non-browser related secrets with mozilla, google or apple. Anyway, my point was just that there are lots of places that are not web pages that you need to provide passwords to. And I'd actually say that people who aren't techy are more likely to have more than those, than, say, web developers, who tend to do everything on the browser.
Occasionally I need the password for Microsoft or intelliJ accounts, but even then I just use my phone to lookup the password in my manager visually and then type it, I'm never letting any password I care about go into my Macs clipboard!