The flagship communities are quite alive, but the niche communities have not really taken off. I am talking from both the absence of such communities, and my experience trying to migrate !fluidmechanics. The subreddit has around 10k humans (or bots).

While you cannot uninstall it, you should be able to disable Google Assistant and the Google app. That should cripple its access to such features.

Seems like this can be done in the browser using a user agent switcher.

iNaturalist is a similar non-profit run app and identifies all living things: trees, flowers, bugs, birds etc.

If you press . while browsing github.com, it redirects to github.dev, which is a web VSCode too. Same thing in Gitlab.

Sync to Thunderbird. Tools > Export.

I know it is not ideal, but it works as long as Thunderbird is around.