Can we talk about DuoQ?

I feel like it is really unfair for soloQ players. DuoQ gives too much of an advantage. I played with my friend and we had our own strategy, we ended up both with 80-90% winrates until silver, now 70-80%. I mean, this is completely unfair, isn't it. 2 players communicating well can change the game's flow. If those 2 are at least decent or otp, then there is nothing the enemy can do even. I don't think it should be like that. SoloQ should be solo. And then we have flex, and you can play with others.