>>95894513
Holy zoom
>>95894516
A 2 lander will brick on its 4th land half the time in a 38 land deck. A 2 lander with a night's whisper will still brick a quarter of the time. If this is acceptable for your deck then run 38, but I would not feel comfortable keeping a 2 lander playing the deck in question.
>If your deck has ways to gain card advantage, how many lands are on top of your deck does not matter as much.
Then run card advantage? You should be already.
Most "flooding" I see is from 38 land 10 signet decks that speedrun out their commander into removal and then have nothing to do. If they had just played 43 lands and early plays that do things(Dark Confidant, Esper Sentinel, Ragavan, Sylvan Library, Faerie Mastermind) they'd have a similar amount of mana by turns 6-8 but way more cards/board presence.
>>95894575
>works for me
Go spectate some modo commander lobbies where someone concedes by t4 in 100% of games because 38 lands "works for them".