I have 4-5 typescript projects and one python opened in Zed at any given time (with a bunch of LSPs, ACPs, opened terminals, etc.) and I see around 1.2 - 1.4gb usage.

I opened just one of the typescript projects inside VSCode and I see something like 1gb (combining the helpers usage). I'm not using it actively, so no extra plugins and so on.

That's on mac, so I guess it may vary on other systems.