Originally Posted by IFlyPlanes

The aircraft you mentioned have the older cabin style, and also the older over-head bins which are the same as on the older-series A320/21ceo.
Starting from G-TNEA on the A321neos and G-TTNM on the A320neos, they have larger over-head bins. However, the cabin divider seems to have had issues on aircraft with these larger bins!