23.4.2 appears to be broken
Updated from 23.4.1 and the amazing Adobe developers seem to have done it again.
Complete freeze when 23.4.2 opens. Have to force it closed in Task Manager.
Latest updates applied for Windows 10, lots of GPU power/memory/SSD.
Rolled back to 23.4.1 and it works fine (just before the victim blaming starts).
So any clever comments about 'checking if it is sunny in London' - please note that Photoshop 23.4.1 works perfectly on exactly the same set up.
Fingers crossed that Adobe invests some of the $16.7Bn revenue generated last year in some decent QA.