There are ways but last I knew, if the dev has disabled installing the iOS version on macOS (as Slack and Discord regrettably have), you need to turn off SIP to

There are ways but last I knew, if the dev has disabled installing the iOS version on macOS (as Slack and Discord regrettably have), you need to turn off SIP to be able to decrypt the iOS app bundles, then re-sign them and re-enable SIP. My only M1 mac is a company machine and I don’t like the idea of disabling SIP on it, even temporarily.