Honestly I see no use for the ai response in search as it is hard to trust 100% but I do see that it could become a requirement for a search engine

I’m not particularly fond of Uber’s bussiness practices but if it is well integrated then it might encourage people who use Uber anyway to take a train instead of a car

Tasks.org, synced to nextcloud using webdav

Could set up a nextcloud instance, but might be a bit overkill for your use case as it is a full Google workspace replacement

Antennapod is good

I would recommend proton drive as a great replacement if you want something that doesn’t need a server