yes, it can run IG and Tiktok, but you'll have a bad experience due to the screen aspect ratio, and small screen size

the power user base you mention is probably too small to sustain them long term

Genuine question, why would a none power user want a physical keyboard on their phone?

Or from the other side, why would the digital detox, second device crowd go for a fully featured Android phone with a color AMOLED with all the temptations that brings over a smartwatch or black and white screened device?