> AnkiWeb
Worth noting you don't need to use it. Anki comes with a syncserver implementation for a while now, and there are docker images too. It's worth it for the transfer speeds alone IMO.
Anki is under AGPL too, which has an anti-DRM clause, so many type of enshittification of anki or their addons (e.g. to prevent sharing of their decks) would be unenforceable too.
As such I see no obvious things that would be susceptible to enshittification here.
Aha [0], that is neat.
[0]: https://docs.ankiweb.net/sync-server.html