[markogresak]

> dev finally breaks down and tests it on any other non-Apple device

Why the need for an extra device? There's a setting in the System Preferences > General > Show scroll bars: "Always".

Or it will automatically show scroll bars if you're using a mouse.

If you're a web developer and your target audience is not limited to only macOS and mobile, you should have the Show scroll bars set to Always. I'm using a mbp for most of my web dev career and I've always caught these bugs during development.

What I do agree is that Windows or Linux makes this setting a default, which makes it more obvious. While testing on different devices is always better, it's not necessary to catch these trivial problems.