This page showcases….
There are display styles available for Advanced Links in the request view:
Drop-down select
List with avatars
Administrators can select an appropriate style in the Advanced Link configuration 
add link
Drop-down select
This style will present the Advanced Link field as a select list with an expandable drop-down menu.
An example of such a field on a request form is showcased in an Arcade below.
https://app.arcade.software/share/sIaRdsMaxTFn6eelFYq7