Isn't it a bit interesting to see Nico Williams still staying at Athletic Bilbao?

Didn't he get any offer from other clubs except Barcelona? For example Bayern Munich got interested but ended up with signing Luis Díaz for even a higher amount than Nico's cost.
He is still 23 of course. But I would rather watch this kind of young talents at the places they deserve. He is amazing you know. He shouldn't waste his most productive years of his career at a lower team...