Make sure that you have the uBlock Origin Extension, either for firefox or chrome (also works on Android)
Click on the uBlock Origin Extension, and in the bottom right, there is a cog-wheel symbol--named the dashboard. Click it.
Once you are in the dashboard, look towards the top. Click on the tab that says "Filter lists"
Look towards the bottom, and expand the Import button.
Copy and paste this url https://raw.githubusercontent.com/laylavish/uBlockOrigin-HUGE-AI-Blocklist/main/list.txt into the dialogue box.
Apply changes, and your set!

In order to update the list, there is a green stopwatch next to the newly added list. Clicking on it, then pressing Update now will force an update of the filter list. Although, uBlock Origin will automaticallly refresh the filter list once a day, so you could also just wait it out.

Additional list(s)

As of right now, there are two lists. The main default list, and the nuclear list. The nuclear list has sites that contain a mix of authentic and AI generated imagery, which make it tricky to outright block in the main filter list, so I've designated it to a separate list that you can toggle on and off if you so desire.

In order to use the list, do the same steps that you did in the section "How to use the blocklist", but instead of using the other url, use https://raw.githubusercontent.com/laylavish/uBlockOrigin-HUGE-AI-Blocklist/main/additional_list_nuclear.txt

There ya go! Happy searching!

Special thanks

Special thanks to this pastebin (since it added even more sites to my blocklist) and to u/AchernarB for the awesome snip-bit of code.