Not in a way that achieves the same purpose as Telegram. Telegram is like Twitter, which is well suited for interaction with people you don't know. No wasted effort on security since everyone is speaking in public anyway.
Signal groups are poor at that. The work required to encrypt messages increases with group members. People don't want to show their phone numbers in large public groups, and Signal also lacks the group admin/moderation options necessary to handle many hundreds or thousands of members.
Signal groups are poor at that. The work required to encrypt messages increases with group members. People don't want to show their phone numbers in large public groups, and Signal also lacks the group admin/moderation options necessary to handle many hundreds or thousands of members.