I think it's possible but it's also not clearly borne out by the data yet. What came out was that TikTok was "most downloaded", but that is in part because they've been paying $$$ for user acquisition through ads. There is definitely some addictiveness to the platform but it's not clear that users who download are staying long term. Personally I fell off the charm a few months ago and nothing at all is pulling me back in. We would have to see what happens in ~ a year when they run out of users to acquire and YouTube develops its own vertical-scrolling short form content.