Possibly facing the end of his grand prix career, Magnussen insists he is at peace with the idea of leaving - and pointed to the success of ex-Caterham and Sauber driver Marcus Ericsson, who won the 2022 Indy 500.
"I am an active participant in contention for a few of the seats and that is great," Magnussen told media including RacingNews365.
"It is all very open at the moment, and there is a good chance for the established guys to end up in a seat anywhere.
"There has been potential here at times, but there has never been a podium here though or a season where it has just worked out.
"There is almost like this unfulfilled potential that I think it would be quite fulfilling after so many years to be part of, but on the other hand, it has also been a long journey.
"I've been in the midfield every year that I've been in F1 and I'm 31 years old and I'm starting to think that if I finished my motorsport career having just done F1 in the midfield, that would feel empty.
"I watch Le Mans or the Indy 500 and see some of the guys that win, they look bloody happy and I think there's a career outside of Formula 1.
"I've been part of it a few times when I've not been in Formula 1, it is a great life and it is pulling a little bit."