In the Web client, when scrolling to the bottom of the Lookup control box, [Look Up More Records] appears and we could search for unrelated records. We could also enter a value in the lookup field.
On the other hand, in the Unified interface, the Lookup control box does not display "Search for other records". But only related entities.
When scrolling through the records in the Lookup control box, other records are displayed in a list. The large number of records take time to search and the work efficiency is lowered. If we can search from [Look Up More Records] and enter values as in the Web client, the convenience of operation will be greatly enhanced.