First of all this exam/certification was introduced somewhere around autumn 2020. It has old badge and it doesn't have a description on Credly, but it is the latest and the only available certification for PL/SQL developers. Strange thing is that according to Credly (sorted by popularity) it is not very popular. There is a new APEX certification around for 2 months (1Z0-760) and if you check Credly, then more people have it then this at least 8 months old PL/SQL certification.
If you want this certification, it is pretty much the same as (retired) 1Z0-144 exam, tiny bit harder but also with higher reward (OCP instead of OCA). So if you are prepared for 1Z0-144 exam, you should pass this too. Same topics, same style of questions.
Oracle PL/SQL Developer Certified Professional