Roku home screen was finally set to 4 apps in a row which makes it much easier to organize. Why did they change it back to the 3 apps in a row? How do I change not back to 4?
It was a test. Hopefully, it will become an option you can choose. Some liked it, some hated it (look through the various threads.)
Roku foisted this test, and several other home page changes, unawares on some subset of subscribers who never agreed to be beta testers. Some of the changes have come and gone more than once.
Roku has said they will return as user options sometime in the future. I wouldn't hold my breath.