Remove photos from iCloud to laptop

Open Photos, go to Photos/Preferences/iCloud and set up syncing. Then go to System Preferences/iCloud, sign in, and check Photos syncing. Once all the Photos have synced to your computer, quit Photos. You should now have a complete compilation of your photos (like a Master Library). Reopen Photos with the option/alt key held down and create a new system Library. You can now delete photos from your devices while maintaining a master copy on the computer. Added photos can be exported from the new Library and imported into the Master Library. Turn off iCloud syncing when reverting to the Master Library.

Photos - Use multiple libraries in Photos

You have to export the photos (https://support.apple.com/guide/photos/export-photos-videos-and-slideshows-pht6e157c5f/mac) and then remove them from iCloud.