

You would run Windows software with Wine (Bottles is great for this). If you can find an older installer, you would (in theory) install it in a specific directory structured for Wine (called a wine prefix).
If software is too big or heavy, there’s ways to manually install a specific package version on Arch, or you can tell pacman not to upgrade a package you have already installed by noting it should be ignored via a specific section of your pacman.conf




I would agree with that wisdom in general. I don’t think any package manager would prefer a user piecemeal updates like that.