Yes TikTok increases the joy its users experienced, otherwise they would still be doing what they were doing before.
I do think people are much happier than they were 20 or even 10 years ago, largely thanks to the increased joy brought by better apps. Can that continue until people are "overwhelmed with the pure bliss of being alive"? No clue, doesn't seem likely, but it's certainly possible.
Then what's with all the "social media causing depression" we hear all the time, and there also being studies highlighting that, not to mention countless anecdotal stories.
I do think people are much happier than they were 20 or even 10 years ago, largely thanks to the increased joy brought by better apps. Can that continue until people are "overwhelmed with the pure bliss of being alive"? No clue, doesn't seem likely, but it's certainly possible.