I stuffed a Ryzen 5700X3D and a Radeon 9070XT in an 11L Lian Li x Dan A4-H2O. It wasn't easy to get all the cables and such routed correctly, but it fit. (Well, except that I did have to give up on having a 3.5" hard drive, but aside from that.)

Ironically, I had originally intended to keep using my old Antec ISK-600 (which was also a mini-ITX case, but larger -- not sure how large, as it came out before they started measuring cases in liters). Unfortunately, as I had little time to research which particular 9070XT variant to get while standing in line on launch day, I accidentally picked the wrong one and it was >2 slots, so I had to change my case. Then because I found an open-box A4-H2O, that snowballed into swapping my ATX PSU for an SFX one, and my 120mm AIO for a 240mm AIO with slightly more flexible tubes because that's how tightly packed it had to be.