As your questions relate to IDE 2.x, I have moved your topic to the dedicated IDE 2.x section of the forum.
I don't have access at this moment to a system with IDE 2.x so can't advise. However, IDE 2.x was quite slow in loading on a 2nd generation I3 with 8 GB memory and non-SSD hard disks.
I do not know what wisdom is; a number of the IDE 2.x feature are nice. I'm currently using a 32 bit version of IDE 1.8.19 and I do miss the autocomplete.
When I updated to 2.x.x, the IDE almost became unusable and would never finish updates/downloads/loading of things… i couldn’t even type of letter of code without my computer fan running full speed and cpu overheating…
Not sure if this will help you but it helped me tremendously. I limit and only allow the IDE access to half of my cpu cores…
The hints may depend on the compiler back-end, which would vary for different boards. I'm using a vendor variant of arduino-esp32 v2.0.14. Seems like a full successful compile -- aka Verify -- is needed at startup. It kind of keeps up as I edit -- there are brief "Building sketch" messages in the bottom-left corner -- but I'm not surprised when it goes back to being stuck "Loading..."