As the title says, even though you can remove curse of binding armor in creative, you can't remove curse of binding trinkets in creative.

since
trinkets-3.4.2.jar 1.19.2
trinkets-3.5.1.jar 1.19.3
we have

/trinkets set offhand ring 0 air or /execute as @p run trinkets set head hat 0 air
and using it can remove item with curse of binding even if in creative so kinda fixed
sadly still dont have item modify to remove just the enchantment