Installing Mojave on a separate volume
I have a MacBook Air, early 2020, running Catalina (10.15.7). What I'd like to do is to install Mojave on a separate volume on my SSD so that I can run some 32-bit games that are incompatible with Catalina and Big Sur and are unlikely to be updated. I believe, reading some other posts, that I can install Mojave from a bootable USB flash drive. However, when I try to download the Mojave installer from the Mac App Store, I get a popup telling me that this version of macOS is not available.
Is there a way to download the Mojave installer so that I can set up a USB flash drive as a bootable drive with which I can install Mojave on a separate volume? Thanks!
MacBook Air