Code completion isn’t that special. Do you have experience with other IDE’s?

Huh? Every IDE has had this feature for decades. Eclipse, all of JetBrains products, even NetBeans. This is like the most basic feature provided by IDEs.

Also with the development of first party language servers it’s relatively easy for new IDEs to integrate.

Vim does code completion just fine if you set up your language server correctly.

Any editor that support LSP has the same (or better) auto complete. All IDEs also have the same (or better) auto complete, don’t even need LSP.

I only use windows because I have to open PDFs that only open in Adobe Reader from my government.

Nothing else has code completion that even comes close to being that good.

Well, except Visual Studio (for C++), Qt Creator, and every Java IDE in existence.