Lawson was drafted in halfway through the Zandvoort weekend to replace the injured Daniel Ricciardo, substituting for the Australian until this weekend's Japanese Grand Prix.
Following a last-minute call-up in the Netherlands, the New Zealander has gradually made progress and started impressing Red Bull chiefs, with a breakthrough ninth place and a Q3 berth in last weekend's Singapore GP as a standout result.
Lawson's recent form has given Red Bull a choice to make between Lawson, Yuki Tsunoda and Ricciardo for AlphaTauri's two seats next year, although it is thought Tsunoda and Ricciardo are still most likely to stay put.
Speaking ahead of the Suzuka weekend, Lawson admitted he would be disappointed to return to a reserve driver role after getting a taste of an F1 race drive.
"I wouldn't be happy to go back to being reserve, but obviously, I know how hard it is to get into Formula 1," Lawson said.
"And I understand that that can be really difficult sometimes. So obviously, what will happen, will happen, but these things I just haven't really thought about too much. I'm just trying to make the most of this."
Source: Autosport