Seeing modern standby is pretty insane in such a short time; it was one of the most attended talks in the BSD talks at FOSDEM:
https://fosdem.org/2025/schedule/event/fosdem-2025-6390-wake...
Also pretty impressive because Aymeric started as a GSoC contributor and is now sponsored to work on BSD by the foundation.
OpenBSD's had suspend-to-idle (S0i) aka "modern standby" since 7.6 (2024), at least on Intel. 7.8 will have better AMD support.
I think there is still work ongoing to improve battery life.