When Jesus spoke to the masses of all that had gathered, each person regardless of their language, heard the same sermon. He didnt speak first in Aramaic, then Hebrew, an so on. He spoke his language, and through the miracle of God, those that were there heard it in their own language.
The “speaking in tongues” at the charismatic churches is nothing more than people expressing themselves during worship. If they believe the Holy Spirit is moving them to do so thats fine as well. However, to some it is bizarre
Go read 1 Corinthians 14. You’ve been scooped by St. Paul. :-D