There is various hosting or rendering models on Blazor. Blazor can therefore be applied in several ways. All current browsers can render Blazor Server because it merely transmits HTML and CSS to the client.
On every operating system, Blazor Server is compatible with all current browsers. Let's say, Chrome, Edge, Firefox, Safari, and their mobile versions all work just well with your Blazor WASM application. Client-side Blazor applications cannot be run on Internet Explorer since it does not support WASM.