No company is perfect unfortunately. Some are just way, way worse than others. Nothing is one of the better ones, owning a Phone (2) myself it is definitely getting tired and I’m not sure which phone I’ll get next. I’ll probably hold off on the Phone (3) and see where exactly they decide to go with the Phone (4a) and beyond. I can say that I like Nothing products but calling myself a Nothing fan isn’t really true anymore.
I’d say don’t rush anything. Keeping onto your current phone is better for the wallet and the environment, something like that. At the end of the day you’re still buying a slab that will most likely be used 90% for scrolling anyway, so don’t overthink it. Get what has worked for you in the past.