Yes. That's also part of the technical experience that also changes the resulting social landscape. I used to think "what's the point of banning something if people can get it anyway" but after seeing how cannabis became hyper-commercialized in the USA, I see that both the ban and evasion are just part of the game. (Which nobody should get prison for)
Ban an app, another appear. Ban all apps and they would join any of the services that provide a web frontend. Kids in the late 90's/early 2000 were using IRC when ICQ and MSN messenger didn't support group chat, usually from a web client before they were introduced to mirc and other irc clients.
Bottom line: they would find a way.