It sounds like you're weighing the trade-offs between a traditional SPA with a CRUD backend and SSR with edge compute. SSR (like SvelteKit with Cloudflare Workers) offers benefits like improved SEO, faster initial load times, and better edge caching, but it can add complexity and cost. Hosting on services like Cloudflare Workers can be efficient for serverless execution, though it might increase your hosting bill compared to a simple VPS. If your team values simplicity and you don't need extensive SSR features, a separate backend with FastAPI/Svelte might be the more cost-effective and maintainable approach. The choice depends on project scale and team preference.