Here's a Bluesky thread from a couple of days ago: https://bsky.app/profile/catgirlfingies.quest/post/3mdoiemnmtc2t
There's Vivaldi which is Chromium and not open source, but AFAIK is currently the only big browser that is explicitly not going to include AI features.
Whoops, archive.md etc may currently be risky, I've now seen https://social.coop/@eb/115902323900229756 (via https://sopuli.xyz/post/40369418)