What is the best chat platform which allows Telegram-style groups?

Just tried Signal for a group, and wow I can't believe that your phone number is shown to everyone in the group. I understand that there is a Signal feature in the pipeline[0], but you currently give strangers your phone number in Signal Groups.

[0] https://www.reddit.com/r/signal/comments/k3dkvd/hide_phone_number_from_group_chat/