Yes I definitely believe everything you say. I will say that currently I'm using LSP (Emacs Eglot) for Python (pyls) and Rust (rust-analyzer) and the difference is (unsurprisingly!) night and day. I love Jedi and I'm sure Palantir did a decent job but... but rust-analyzer on the other hand, I wonder if in a year or two, is it possible that Rust in Emacs might not be so far off the best "IDE"?