use beta version of the launcher button bug

hey minecraft. so idk if my account is hacked but i am getting a bug about minecraft beta

i didnt used minecraft beta today and it suddenly turned my mc into minecraft beta and i tried

removing the use beta version of the launcher  but it didnt work

i tried to do everything i can i tried restarting my pc i tried relogging and more and it didnt do anything please help me i really wanna play minecraft bedwars

thank you