16gb vs 32gb ram for gaming

Is it worth spending extra money to get RTX 4070 (8GB) variant over RTX 4060 (8GB) ASUS ROG STRIX G16. Both GPUs have 115W TDP with 25W boost. To be future proof for few years, is 32GB RAM (DDR5 4800MHz) necessary for gaming in the above mentioned laptop? How long can I expect 16GB RAM to be...