I need the sample applications blazor web assembly (asp.net core 6).
I recommend the official Blazor WASM tutorials on this site.
Google is also a good tool for finding tutorials.
What are the limitations of blazor web assembly ?
Blazor is a browser based web application. It has all the features of a client side web application.
The best path is to learn Blazor WASM basics then compare Blazor WASM features with your application requirements.