umm i download 1.19 version but i opened minecraft and i got this and th textures keep changing and i do not know what i do

Looks like a previously seen but kinda rare AMD thing. What's your system info?

Looks like a previously seen but kinda rare AMD thing. What's your system info?

how do i check info of system

screenshotting debug screen (F3) could be a good place to start, you could also tell us your operating system (windows, mac, linux, etc)