Getty Nick Bosa is introduced before a game against the Seattle Seahawks on November 17, 2024. Since 2019, the San Francisco 49ers have perennially been expected to compete for a Super Bowl.    They’ve had a few bumps in the road due mostly to a couple seasons, but ahead of each season, the expectation hasn’t changed. It’s Super Bowl or bust.  2025 is easily the most uncertain preseason in San Francisco since 2018. Not only are the 49ers coming off a 6-11 season in 2024, but they lost several