All you need todo is just input several emojis in the tag, without any other symbols. I've used "100 points" one.

example tagless group created by me: https://steamhost.cn/steamcommunity_com/groups/wastedlmao

also, you can create fake pro groups: https://steamhost.cn/steamcommunity_com/groups/fakefazelmao
how it is ingame: https://i.imgur.com/VbAOzKl.jpg

(original group: https://steamhost.cn/steamcommunity_com/groups/FaZe_Clan)

found by me obviously, I didn't search for similar threads anywhere else except this group