>>106008365 (OP)A push for "better" graphics adding extra large textures and visual effects with very high cost but little impact on visual quality
Virtually all games now use one of the flagship engines, those engines are overloaded with nice features that any specific game will only use a small amount of, and the developers are nowhere near as intimately familiar with the quirks of a commercial engine as they would of their own in-house engine
Studios prioritize minimizing development time, and thus cut down drastically on optimization and QA. If the game runs well or not does not affect pre-order sales, and bugs don't matter at all
Most devs are underpaid bootcamp monkeys with no skill, understanding or technical experience. They just string assets and frameworks together and don't know or care what these abstractions cost