This is the key difference. They mobile games don't want you to wait and come back tomorrow. They want you to pay to remove the blocks and just keep playing, today, tomorrow, every day.
This is not _entirely_ true, not that it changes anything significant about the predatory nature of f2p developers.
They absolutely want you to come back tomorrow. Apparently (inferring from what e.g. Mihoyo says and does about "total lifetime income") a whale that spends a bit less at once, but keeps doing this for years is far more valuable than one that blasts through the game and burns out immediately. You also need some dolphins and free-to-play people, both to fill out the multiplayer lobbies and appear less predatory.
They absolutely want you to come back tomorrow. Apparently (inferring from what e.g. Mihoyo says and does about "total lifetime income") a whale that spends a bit less at once, but keeps doing this for years is far more valuable than one that blasts through the game and burns out immediately. You also need some dolphins and free-to-play people, both to fill out the multiplayer lobbies and appear less predatory.