Oh no. It pops up a quick menu when I select text, like Medium. The problem is that I'm constantly selecting the lines I'm reading. :( Edit: Also, it's extremely narrow. On my 32" 4K display, 70% of the screen is empty. And the font is too think. And stuff keeps moving/jumping when I'm moving the mouse cursor. I want 1998 back.
I do the same thing when reading text and HATE websites that do this, the solution I've found is to just use uBlock Origin to block annoying web elements like this. You can do the same, just add the following filters:
docs.microsoft.com##body > .lf:nth-of-type(7) > .lf-active.lf-selection-popover.lf-popover > .lf-popover-content.lf-thread-content
docs.microsoft.com##body > .lf:nth-of-type(7) > .lf-active.lf-selection-popover.lf-popover > .lf-popover-arrow