This is my favorite alternative form of Magic:

https://articles.starcitygames.com/articles/the-danger-room/

"I have a feeling that roughly 25% of games are decided by a player drawing too few lands, 25% of games are decided by a player drawing too many lands, 25% of games are decided by a player having a legitimate bomb not get answered immediately, and the last 25% of games are the ones that everybody hopes for where there is a ton of back-and-forth on both sides. I wanted to create a format that eliminated those unpleasant 75% of games that are unfulfilling and foster a format where ALL of the games were as interactive as possible."

Alternatively you give everyone a free mulligan and if they decide to start with <3 lands in their hand or no mana ramp that's on them.

My issue with guaranteed lands is that they remove the randomness of some lands. I am not guaranteed to get my "no maximum hand size" land and my rogue passage to make my creature unblockable in a typical game of commander. I have to plan for it by using stuff like expedition map.