TheBigIguana
Player Valuation: £100m
He isn't now because they're doing weird stuff because they don't have a good striker anymore. Last season I'd call him an attacking mid.No as in Sabitzer doesn't play as one of the 2 attacking mids.
But none of this really matters because Lookman is a winger and RBL just factually don't use wingers. Lookman is natural as the left side (or possibly the right) in a front 3, the same spot in a three behind a striker or possibly on the wings of an aggressive 4-4-2 (essentially what Hassenhuttl does). RBL really do not do this any of this. So while he might have a position it isn't his position really which makes it both understandable why he didn't play and why he didn't want to hang around.
The positions he is taking up for Fulham this season on average do not correspond to any RBL player best I can tell. The closest is maybe Nkunku but he's still narrower.