Vyxal, 2 bytes
ÞF
Before you go saying that the online link doesn't match the submission here, that's because the extra ,
is needed to actually make the output appear online. If you use the offline version, then you will see that the above works just fine. Also, the 5
flag makes sure that the online interpreter times out after 5 seconds.
Explained
ÞF # Push every Fibonacci number
And now for the non-trivial version
Vyxal 5
, 86 bytes
λ2|+;k≈Ḟ⁽+dk≈Ḟ
Once again, discrepancies between online link and actual version are for the purposes of making it work online.
Explained
λ2|+;k≈Ḟ⁽+dk≈Ḟ
λ2|+; ⁽+d # lambda x, y: x + y
k≈ # the list [0, 1]
Ḟ # Create an infinite sequence based on the function and the initial list.
Fun fact: the infinite sequence function you see was inspired by the sequence blocks of the golfing language Arn by ZippyMagician.