^You can do it on your own, I have the same situation as yours and until now no one can auto add my account on any Telegram group or channel.
Go to your Telegram setting, and find Privacy and Security, under the Privacy section find and click the Group & Channel and select My Contact under the selection of Who can add me to the group, not the option which is Everybody. I hope you get it.
Common scams happen on Telegram, I don't want to gamble my money there if there is any who introduced their service, especially those who posted here, Telegram betting group which I always doubted.
That's why I'm surprised by the number of groups that have added me on telegram that I don't even know them, it's accumulated so much that I'm annoyed to leave and report the group, but thank you very much Sir for teaching me this I can no longer just be added to the group they will create.
Then I noticed that Telegram has become a breeding ground for scammers, there are many fraudsters and people who steal funds from people they know they are going to cheat, especially when they read that they are willing to withdraw money even if they are not the ones you are asking, they will create a fake account. and pretend they are part of a project team and will be called right away, which is questionable. So this should be avoided and avoided immediately.