I get fast enough autocomplete (sub second), and full line completion just fine, and I never use/buy top of the line systems. (using a midrange ~2020 thinkpad).
But I'm in a similar place as the comment you replied to. Unless they start focusing again on improving they existing product line, next year I might not renew my licenses anymore.
Before AI took over, I was following closely their release notes and announcements because there where on the right path on improving experience.
What makes their IDE look bad is their indexing process, during which it is slow and completions will not show up. If you know about this quirk you know where to look for it (it's visible in the status bar), and know what triggers it (dependencies installation and such). After so many years, I really feel the solution for that is pretty "simple", "just" run the indexing on a snapshot that is not shared with the running instance and swap out indexes when done.