Is using flutter for both mobile and web for a social media platform feasible?

I'm new to flutter and I'm planning to create a social media platform something like Twitter, Instagram, or TikTok. I plan to use flutter for its web and mobile. But from what I can see since Flutter web is still in its early stages is it really achievable/feasible/practical(I don't what term to use) for the platform to only use flutter? Or is it much better to separate the web and mobile like using react/angular for the web and flutter for mobile? Also, Can you also provide what are the pros and cons for both scenarios?