Seconding VaruLV: M2 base will only be "better" than the M1 base in single core, multi core and efficiency. If it isn't, Apple really f'ed up.
M1 Pro, M1 Max, and M1 Ultra will still have the best multi-core until M2 Pro, M2 Max, M2 Ultra are incrementally released over the course of the next year and a half... if M1 releases were any indication.
It is probably safe to say, again if M1 is an indication, once M2 is released whatever single-core you see will not vary widely between the M2 Pro, M2 Max and M2 Ultra. Hopefully M2 offers a significant jump up from M1 in single core and it should be fairly straight forward to predict where the multi core scores will be for M2 Pro, M2 Max, and M2 Ultra when they come out.
But yeah... M2 base being a more performant chip than a M1 Pro, M1 Max, M1 Ultra... nah. They are still going to be the choice for serious creators, producers, professionals, etc. until the M2 Pro, M2 Max and M2 Ultra come out.