unless the team grew 3x its size, the plan to make something within a modest budget was and is still one of their things they continue to due. They are also working on multiple titles within the studio. I just know from what they shared during Hellblade one development their approach to experimental development.
Seems that same/similar approach is happening with HB2:
Hellblade 2 is taking the fight to the next level
Not saying it does not have a big budget, but its not in the same league as Halo Infinite in terms of it's budget/dev time/studio size ect.