Remix vs Tanstack start

I've been using Remix for a while and really appreciate its loader pattern, but I've found actions/fetchers somewhat awkward to work with. I tend to prefer using React Query for updates.

I'm interested in learning more about the differences between TanStack Start and Remix/React Router. Specifically:

1. How does the data fetching model in TanStack Start compare to Remix loaders?
2. Does TanStack Start provide a better experience for mutations compared to Remix actions?
3. What's the most common way to deploy TanStack Start applications? Most of my infrastructure is on AWS (using SST with Lambda, S3, API Gateway, and Supabase).

Thanks in advance - TanStack Start looks like a great library, and I'm excited to learn more about it!