In 2019 release wave 2 enabled,

We have lost the ability to view all available choices for a drop down and only shows you the recent used.

This effects general usability on every look up.

So if you go to look up a email template but don't know the name you have to randomly type a guess to get a list to appear. sames goes for email signature.

I have a situ that if account name = 'contoso' the primary contact field (when hit search icon) will only show contact's from that account, this now shows my recent contact used which are not contact of that account-frustrating!!

Oh and it is effecting Outlook app too so when i go to set regarding a list of active cases now does not show!

I have countless other look up values like its effecting which is making usability frustrating and taking me longer to achieve my task in hand.

So I raised a MS case and outcome was told this was the new out the box by design for drop downs - seriously MS can you image in October when our clients get the hands on it.