One of the pain points I have with Pro is the lack of updates to “stable releases”.
There are bugs in Pro 5.1.5 that have been around for more than a year. There are many but one example of this would be the Form Element not working with Ajax for Gravity Forms. This was reported in a thread in Feb '21 and again in October '21. To have this broken for more than a year seems crazy. There are many more examples of small things that should be resolved but just ignored.
Form AJAX option has no effect with "Form Integration" - classic ok - Feb 21
Form Integration - Gravity Forms Ajax not working - Oct 21
It would be awesome if there was a schedule to update and resolve bugs in the current version of Pro as they arise.
By example, Avada has a patcher where they release patches for bugs in the current version of the theme even if the new version is in development. (Yes, I maintain some legacy sites that were built with Avada).