As far as I can see, PSE 14 dates from 2015. About the same time Windows 10 was first released. Since then, there have been 7 newer versions of PSE.
I'm not a 'techie' by any means but I have read that Windows 11 works ('under the hood') differently to Windows 10 in some respects. Notably things like memory management, etc.
As Gadget's links show there are various 'tweaks' that people have made in attempts to get older versions of PSE to run under W11. Some successful, others less so.
Personally, I would advise upgrading PSE to the current version (2023). I'm not a big fan of manually editing the Windows registry or (temporarily) disabling Windows security options to 'sneak in' a version that isn't really compatible with W11. Yes, you may be able to get PSE 14 to 'work'. But at the possible risk to 'Windows 11 stability'.
As far as I know, the upgrade price is about $80 (£67).
FWIW, I run FTM 2019 on windows 11 without any problems.