If your older Mac supports macOS 11 (Big Sur) or 12 (Monterey), you are in a safe zone. You can run modern versions of Configurator without issue.
If you need to use Apple Configurator to restore an Apple Silicon Mac (M1/M2) or an Apple TV 4K, you might need the absolute latest version of the software, which requires macOS Ventura or newer. apple configurator for older mac