After updating most of my user scripts for e621 after the 2020 update, I thought I might as well share them. To install a script you need Tempermonkey for Chrome or Greasemonkey for FF
This adds a small post search bar on top of the page for all pages that do not have it
Whenever you see a post thumbnail you can hold shift and hover over it to. This will load the image into an overlay that fills most of the page.
For the competitive, a little fun script. Go to a user page and this script will calculate a 'Level' based on your stats. Little badges will appear next to the avatar or name, based on certain activities on the site.
PRs and Feedback welcome.