I spent two months with SvelteKit for a SPA project,it did not fly, the SSR-first (e.g. documentation etc) made CSR-SPA a second class citizen plus added unnecessary burden for those who does not need SSR, no it's not as easy as just "setting this flag you will be golden for CSR".
If I need SSR sometime, I might as well just do Django, Rails, Laravel etc which are solid. Please give me a true SPA as it used to be, and make SSR optional instead of the default.