"iCloud Photos is only available on macOS Standard, macOS Extended and APFS formatted volumes."

Hello Everyone

I am getting the following error in Photos in my Mac

"iCloud Photos is only available on macOS Standard, macOS Extended and APFS formatted volumes."

And I followed the following steps multiple times

"First, shut down. Then reboot, and then immediately hold the Command+R, until you see the progress bar, then release.

Then, you should get a screen that has 4 choices - choose the bottom one - Disk Utility.

Select your HD on left and run "First Aid" (first button in center menu). It should take a few minutes to run.

Once complete, restart from apple menu, and sign in as normal. Your iCloud Photos should be working."

But the problem still not solved. Can you please help?

I am using external hard drive for photo for macOS Monterey

Please help.

Yogesh Tolia