I've gone ahead and tested it, and it does still work on 1.18.2. If you're worried about the popup saying that the pack is made for a newer version of mc, that doesn't actually affect anything. If you want to get rid of that popup, you need to go into the pack folder and go to the file named pack.mcmeta. If you open this file in a text editor like notepad, you can change the number next to pack_format from 18 to 8, which is the corresponding number for 1.18.2.

If that's all too confusing or difficult to follow, I can also send a dm with a version of the texture pack for 1.18.2 :)