We do not have a download file for the latest version (7.5.1), but you can try downloading it from the developer's site
Download version 6.22.826 from Mac Informer
Version: 6.22.826
Date update: Oct 27, 2022
File name: vnc-viewer-6.20.113-macosx-x86_64.dmg
Size: 3.1 MB