with self-sufficient residence in Malta and companies in Gibraltar, do CFC apply?No, from HMRC:
A foreign company is a CFC if it’s a non-resident UK company that’s controlled by a UK resident person or persons.
UK corporate tax resident generally:
Residence of a company is determined according to where its central management and control is to be found
so Gibraltar registered office Malta operational headquarters (remote work)
Malta could ask me for taxes?