To be honest, I think 8 GB is a more realistic requirement for light tasks nowadays, but not because of Windows - even Windows 10 would struggle with Chrome, Word, Excel, etc on just 4 GB, and I can't imagine that W11 is any better. Increasing the requirements would ensure that OEMs won't put Windows 12 on shitbox PCs with 4 GB and call them usable, just because they meet the bare-minimum standards.

2-3 years is actually a reasonable time for Windows releases, going by historical dates. I think we're all used to the long gap between Windows 10 and Windows 11

New Windows release already? Looks like Microsoft has realised that its old model of selling major upgrades was more profitable than the Windows 10 strategy.