Not cherry picking at all, just acknowledging that of the 12 games over 11:48, 5 are massively inflated due to most of SKA's top 9 being out with Covid, and Podkolzin being forced into a top 6 role. If the team hadn't suffered from Covid, would Podkolzin have received that kind of ice time?
As for Marchenko....Through the 1st 8 games this season, he and Podkolzin both had 1G + 1A. Both started the 1st 4 game with similar deployment, but after scoring 2 pts in his 1st 4 games (averaging ~11:47TOI) Podkolzin saw 9:11, 8:21, 6:40, and 8:37TOI over the next 4 games for an average of 8:12TOI. Marchenko on the other hand didn't record a point in his 1st 6 games (averaging 11:26TOI), and then coming off a minus 3 performance in game 6 got promoted to the top 6 with PP time. Kirill would scored 1G 1A in game 7/8 of the season (playing 14:47, and 16:25).
Then Covid hit, and Marchenko was one of the players who would miss ~2 weeks (he missed 8 games total). Podkolzin would be forced into the top 6 (True top 6 role with PP + PK) for the next 5 games, and would be played on the top line for 3 games after that with no special team mins. As soon as Marchenko returned, Pokolzin was sent back to the 4th line playing 10:47, 8:37, 3:52, and 12:55 (from today), while only playing 4 out of the next 8 KHL games.
Marchenko was gifted top 6 mins with PP time, and took advantage, while Podkolzin was forced into that role without veteran support (He played well, but 17+ mins is too much for him at the KHL level), and when the vets returned he dropped to the 4th line again. Podkolzin hasn't played top 6 mins with PP time outside of the 5 Covid game when SKA had no choice. Look at the TOI for the top line today Marchenko 14:59TOI (3:46 time on attack), Vey 14:48 (3:47 TOA), and Podkolzin 12:55 (2:01 TOA), so you can see the difference was Marchenko and Vey saw PP time.