With no access to Stark Tech or the Avengers, I'm convinced Spider-Man: Brand New Day will see Tom Holland's Peter Parker use his suit from the end of Spider-Man: No Way Home for the whole movie. The last time a Marvel movie reused a Spider-Man costume was in 2004 when Tobey Maguire donned what was mostly his first Spider-Man suit again for his second movie as Peter Parker. Thematically, it would make sense for Spider-Man's fresh start in the MCU to be with the No Way Home suit, which he crafted on his own and is incredibly comics-accurate.