☝️ Please welcome @pixelunion on Mastodon!
The Google Photos alternative PixelUnion, a hosted Immich solution based in Europe, made good on another of their promises to address the issues I pointed out in my feedback. They added an RSS feed to their blog and now joined Mastodon. They're also planning a guide for migrating from Google Photos as I also suggested.
Feedback to Big Tech platforms is slightly less effective.