How to change template in Joomla 4 , if you want to change the template in Joomla 4 its too easy , you can see how to do it below :
1-you have to enter to admin panel and upload the new template for Joomla 4 :
2- Drag and drop your new template Joomla 4 to install it
System -> Templates -> Site Templates. If you prefer J3 style menu, you can enable it by setting Alternative preset in administrator menu module.
Then select the template you uploded and click on the star as below
