Eye dominance never changes anatomically, it can only switch eyes temporarily !
There are eyes exercises to chance eye dominance, but when you stop exercising, the original eye dominance comes back.
Cross firing is a false ”eye dominance” that can be a temporary or a long term problem. Cross firing can be caused by many factors. The main reason is when the dominant eye becomes tired or weaker(optically). If it is possible to eliminate those factors that cause fatigue, it will restore your original eye dominance.