Miami goes to the East, Nashville to the West.
The more surprising news is below the headline:
Each club will continue to play a 34-game regular season with 17 home matches and 17 away matches. Every team will play their 12 intra-conference opponents twice – once home and once away for a total of 24 matches – with the other 10 regular-season matches coming against the opposite conference. Those inter-conference opponents will be revealed with the full 2020 schedule release.
So MLS has just given up on even trying to make the schedule almost balanced. There are 2 western conference teams that we would only play in MLS cup.