I face the similar situation, now I am in US will stay for a while before going back to Hongkong to activate my dependant visa. My husband's dependant visa will not expire until next year(I was the employment visa holder before) so no problem for him. But my daughter's visa actually will expire soon, she needs to reenter Hong Kong to activate new visa, which is really frustrated me as she is too young to have vaccine, its not safe for her to go abroad also she will need to do 21 quarantine. We want to check immigrants to see if we can extend her old visa or activate her new visa in hk, but none seems easy. The whole situation really sucks. Maybe we just let her stay hk with no visa activation?