I signed up for Codeberg (based in Europe, uses Forgejo) for similar reasons, plus the obvious US hesitancy for a Canadian now.
worktree.ca doesn't say what software it uses but after signing up and looking at the interface HTML source it is Gitea.
I recall switching my own Gitea instance for Forgejo (fork of Gitea) because of what I read about Gitea Inc./Ltd., but I do not recall what turned me off.