For some reason it seems to always get skipped over or is incorporated as part of a future release is the smart capabilities of fields. Currently, the smart editor in Web App Builder allows for certain fields to display/toggle editability based on a filter criteria. This capability, in regards to displaying fields, exists in Survey123 and Field Maps Forms. It would be a huge improvement if the ability to intelligently set certain fields to display/toggle editing, either using a SQL expression or Arcade to modify the attribute form behavior. You could also have it set so that there is a single arcade expression that can dictate the form behavior for its entirety.
In addition to that the ability to modify the layout of the attribute form would also be a huge improvement. Modifications such as side by side field, window width, etc.