I wouldn't expect any new wheels to include a tire. Used... it depends.

Keep in mind, there are a few different types of rims. Primarily Tubular (sewup) vs Clincher.

Those Flo wheels say "tubeless compatible", but don't mention what they've done with the spoke holes. Some brands have no outer spoke holes, so there is less to seal.

Tubeless rims are often tight for mounting tires.