Quote:..I believe the better is to delete version 2.10.20 and go back to the previous one. I hated the layout of the tools. Even when I remove the grouping option, they appear in a very different order and this makes the job much longer.
Before you revert try this substitution:
Attached the PSD plugin from Windows Gimp 2.10.14
Unzip and put file-psd.exe in your Gimp user profile. C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\plugins
A quick try and it works here. If it does work for you, keep it until you install the next version of Gimp 2.10.22 then remove it.
edit: ... Even when I remove the grouping option, they appear in a very different order.... I know what you mean, but grouped or ungrouped the order of the tools can be changed in Edit -> Preferences -> ToolBox This my setup: https://i.imgur.com/5ufkQGu.jpg