This is something I've read a bit about, but am no means an expert.
There's a reason those cars are $10k apart. And maybe those reasons work for you, but make sure you think through them.
1. Older Leaf's do have a battery chemistry that has degraded more than the more modern batteries. Make sure you know what state that battery is in, and be prepared for it to last only a few years. Maybe it will last longer, and maybe it won't. A 2022 Bolt will have ~10+ years of good life in in, while the Leaf won't. Make some assumptions about how long each will last and figure out the annualized cost of each.
2. 6.6kW charging speed means it's only good for charging at home. Even the "slow" Bolt charging speed is 50kW. This isn't super relevant for your day-to-day, but it could be the difference between being able to do a day trip to Twin Falls (or similar) or not being able to.