I have successfully got tailwind 4 working with blazor using the cli in vs2022. The github demo is here: https://github.com/coderdnewbie/FluentUITailwind4Demo

The only thing that does not work well is hot reload, and am still waiting for intellisense to become tailwind 4 compatible.

I was using the fluentui template with interactive server options, but should work the same with default template. Leave a star if it works for you, I am trying to guage the interest.