We would move faster towards post scarcity if businesses were economically incentivized to uptake automation faster (and then we tax businesses [1] to fund social safety nets).

If we continue to encourage an economic system through policy that is satisfied with labor making wages that provides a dystopian poverty level of life quality, it will take longer to arrive post scarcity. Economic incentives matter!

[1] https://blog.samaltman.com/american-equity

Worse, a lot of what is considered postscarcity / precursor-to-fully-automated-luxury-communism already in here is simply the US hegemony discount.

And that won't last forever.

Not even close, maybe if we ignore the obscene externalities baked into everything we consume. This apparent bounty we have today will be short lived in the grand scheme.