I've been a professional C, Perl, PHP and Python developer.
I'm an ex-sysadmin from the late 20th century.
These days I do more Javascript and CSS and whatnot, and promote UX and accessibility.
I know that, like you, I don't like reading overly-long lines.
There's been a lot written about the readability of lines < 60 or > 100 (approximately) in things like blog posts and newspapers and I think that it makes sense to apply the same knowledge to code too.
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I noticed that code is much easier to read if it's less than 80 characters wide, so I stick very strictly to that.
I see a lot of 120 in the comments, that's just too wide for my brain to read at once.
I know that, like you, I don't like reading overly-long lines.
There's been a lot written about the readability of lines < 60 or > 100 (approximately) in things like blog posts and newspapers and I think that it makes sense to apply the same knowledge to code too.