Doesn’t matter much in practice AFAIK.
One will “leave a trace” in your portfolio, in terms of CHF.USD pair, the other won’t.
P.S. @Louis2800, please use search before opening topics for “one-off” questions (or try to find an appropriate more general topic to ask one).
This has been touched on in other threads, which pop up if you use the magnifier icon on the top right.
Read from here onwards.