In ArcPro having navigated to the main Project options section, there is the info section where one can edit the metadata for the project, one such thing is the summary section.

In the metadata editor section the summary allows up to 2048 characters as shown below

If you type out a reasonably long summary (but less than the maximum character limit), when you go back to the Info section the text is truncated and one cannot read the full summary.
The idea is to improve the UI of the info section to allow word wrapping so that users can actually read the summary!