what have you used? If you set, say DCI-P3 (not display p3 which uses a similar transfer to 2.2) the issues become evident due to the different transfers that it is quite off.
if you used something like display p3, then due to the similar transfer, only gamut changes which is a lot harder to notice at a glance
gnome iirc also has merged the wip protocol so it should work on gnome too