Technically, that was just prior to reentry following separation from the orbital module (Soyuz 11). Komarov was the only cosmonaut to buy it after reentry.
The Soviets/Russians seem to have problems with timing, whether it's the retrorockets, or explosive bolts.
One can only hope the same craftsmanship can be found in the conventional explosives of their nuclear warheads.
IIRC, the Apollo capsules had enough reserve O2 (@5psi) to maintain pressure for 5 minutes with a 1/2" hole - theoretically long enough to don pressure suits.
Or, in the then pressure suit deprived Soyuz's case, maybe enough to finish manually closing the fresh air valve. But I believe the Soviet capsules were normally pressurized to one atmosphere.