Slipstream mod manager can't find java after installing `brew install openjdk`, what should I do?

Today I freshly installed Bazzite on my computer to try the following tutorial. I was advised here (https://discordapp.com/channels/1072614816579063828/1282667481936298015/1282693482816864319) to install java with this command. I ran

brew install openjdk

brew install openjdk

brew install openjdk@21

brew install openjdk@21

and

brew install openjdk@17

brew install openjdk@17

, and followed this tutorial (https://tinyurl.com/FTLmultiverse). At step 24, I got the output shown on the attached screenshot.

I tried

brew uninstall openjdk@21

brew uninstall openjdk@21

and

brew uninstall openjdk@17

brew uninstall openjdk@17

if the multiple versions was the issue, but same output.

I tried previously the same on Bazzite (see linked discord thread), and I got through step 24 (and instead got stuck at step 39). What should I do?