To learn Aviation English or not nowadays? That is the question! Even taking into account the current situation in the world- of course TO LEARN! And of course to maintain and to consolidate it. Some people are absorbed with the issues of more current interest nowadays. BUT! Keep doing it. There are plenty of possibilities nowadays. It is much easier to lose the skills than to gain them. Some time will pass and you will definitely apply for a job in some airline or your ICAO English level will have to be reassessed for further work. Bear it up!