Hi, welcome to the forum.
The last Anki version to support macOS 10.12 and older is Anki 2.1.35 released 2nd October 2020:
Release notes: Release 2.1.35 · ankitects/anki · GitHub
Download:
https://github.com/ankitects/anki/releases/download/2.1.35/anki-2.1.35-mac.dmg