This time I exited Gimp after making the changes.
Good thinking, especially when you have unexpected reboot.
I would recommend time to time to backup (duplicate) your profile > it's the 2.10 folder,
You just make a copy of the 2.10 folder time to time and if one day you got a problem, you just replace it by your latest copy
where to find your profile > https://www.gimp.org/tutorials/GIMPProfile/
Good thinking, especially when you have unexpected reboot.
I would recommend time to time to backup (duplicate) your profile > it's the 2.10 folder,
You just make a copy of the 2.10 folder time to time and if one day you got a problem, you just replace it by your latest copy
where to find your profile > https://www.gimp.org/tutorials/GIMPProfile/