Some seem useful but is seems I can not pick them individually and have to commit to an entire group of them. The symbol for </> (something I never used anyway) looks like the absolute worst to me, like how is that better? And especially of you do rarely or never used it you get forced into this shit if you like other things from that group and enable it.
Turning two == into one long one, NO! I think people just overthink it, it becomes confusing and not more readable.
- native language
- mathematically or symbolically oriented
- etc.
I personally find them imminently readable and use with Fira Code font.