This doesn't match with my personal experience. On Windows10 1Password is using locked about 5MB Ram, unlocked 30MB when idle. It shoots up to 150MB when actively being used, but as soon as I close the window, it's back to normal. Firefox extension takes about 1MB of Ram.

This is currently without having the app window open:

https://i.imgur.com/6NjKKhZ.png

Or if you prefer htop:

https://i.imgur.com/XfZZm9B.png

Such memory use is pretty normal when 1Password is running on macOS for some time. And it runs all the time (I think for the UI autofill stuff etc.).

that's wild, 1password with the window opened on my mac is using less than 300mb of ram, and when the window is closed it goes down to 150mb (all of the processes except the main 1password one are using similar amounts of ram, but my main 1password process is only using ~100mb)

I suspect your windows process viewer is only showing you the thread that's running the foreground window or something like that, it's chonky as.

Currently using 300MiB on mine. I'm on macOS and have about 1100 logins saved.