I just thought of a possible bypass. Maybe a phone’s “scan document” function can help with that? Provided that the text is clear, you may be able to scan a webpage and save it as a scanned document. Then open the doc on your phone (or other device), and you should be able to highlight and copy the scanned text.
Okay, maybe not. I tested it with this very page and although the copied text got the gist, I still would’ve had to go back and edit things. But eh, YMMV. It could be a valid work-around for somebody, just with different text or using a different device.
Usually I just leave them as little image blocks of text cuz ain’t nobody got time for dat. When I actually do want to fully convert it (usually only bother if I’m sending something out to the class), then I’ll save the whole doc as a PDF and then run it through an optical character recognition service like this one. There are ways, they just suck when a feature like copy exists.