I di.xind some digging and found out they actually played twice recently, once on March 25th, 2024, in San Antonio, and another time before that, on December 3rd, 2024, in Phoenix.
The December Game

This one was at the Footprint Center in Phoenix. I looked around for some predictions, and most folks seemed to think the Suns were gonna win. One place, BetMGM, even said their model gave the Suns a 78.3% chance of winning! I found some predictions saying the Suns would win by a lot, like 121 points or something.
The March Game
This game was more recent, at the Frost Bank Center in San Antonio. I couldn't find as much info on this one, but it seems like it happened just a little while ago. I didn't see any clear predictions for this one like I did for the December game.
Putting It All Together
So, it looks like based on what I found, especially for that December game, the Suns were the heavy favorites. It seems everyone thought they were going to win, and win big. The March game is a bit more of a mystery since I couldn't find as much info about it.
I guess we'll have to wait and see what actually happened in these games, or maybe look up the scores if they're already available. But yeah, that's what I found out about this Spurs vs. Suns thing. I just wanted to share what I discovered.