Why is my iTunes stuck on podcasts view on my computer windows 11?

No idea. Are you using the correct method to change it?

• The way to change to Music (for example) is to tap the drop-down menu option (Source menu) at the top of the iTunes window:

• on the source menu, choose the option that you want to go to (for example Music):

• notice the tick mark (check mark) next to the word Podcasts. That is the current selection. If you hover your mouse over any of the other options it will highlight it in blue. Tap the one that you want (i.e. Music)
• you should now be in the Music view

If it didn't work,what did happen? Were there any error messages? Is the word Podcasts ticked?