Synchronise my albums without iCloud
I have create several albums in Photo on my Mac (macOS Big Sur), and organised my photos into these. All of my created albums are showing up under "My Albums".
I now want to synchronise some of these albums from my Mac to my iPhone (iOS 14) and iPad (iOS 12.4), and subsequently both ways, depending on where (Mac or iPhone) photos have been added, without the necessity of facilitating iCloud for this purpose.
When connecting my iPhone or iPad o my Mac (by means of USB or Wi-Fi), I am offered the option of selecting albums to synchronise, but unfortunately only those found under "Media Types". Not a single one of "My Albums" can be selected!
Mac mini, macOS 11.1