I am not sure about the 2022
I am not sure about the 2022 being able to fit the larger battery, but would assume no as the dimensions of the 2023 (at least the body) are larger/different. Re: charging every day don’t worry about that. Plug-in hybrids don’t let you access 100% of the battery anyway, and if you are driving it daily more than a few miles you should probably just charge it every day. What actually degrades your battery fastest are: exposure to prolonged and repeated high temps which you might worry about if you live in a place like Phoenix, AZ and have to park outside in full sun all the time, but note this is more of an issue for cars that lack active thermal management like the Nissan LEAF, and I believe the Niro PHEV uses air conditioning to keep battery cool so probably isn’t an issue for the Niro even in a hot environment. Rapid charging at 480v stations can also speed up degradation but the Niro PHEV and most other PHEVs can’t charge at that rate anyway. So you shouldn’t have to worry about daily charging at all. The propulsion battery in the Niro PHEV is meant to last the life of the warranty at a minimum (10 years/100,000 miles) and very likely can last much longer. I see reports of other PHEVs with 200-400k miles on their battery packs fairly often and it is not unreasonable to think the Niro PHEV propulsion battery would last similarly (noting that over time some degradation will occur regardless of miles driven/usage, but at least 10 years at a minimum and most likely 12-15 os my best guess). The older PHEVs on the road are the 2011 Chevy Volts, and some have needed batteries replaced, and that is perhaps the best comparison to be made, longevity wise, as the Niro PHEV has only been around for about 4.5 years and has had few if any battery replacements under warranty.