I never heard about that before. That this song may have led to their breakup. When something like that happens, it’s often a ‘Straw that broke the camel’s back” situation.
The group was likely on thin ice already, this was all it took to push a hole in the surface.
Apparently, they were able to repair the relationship before:
“I’m fixing a hole, where the rain gets in, and stops my mind from wandering...”
The relationships were frayed since at least as far back as the “White Album”, with Harrison walking out of the studio in a huff at one point, and McCartney basically recording all the instruments on some of his songs instead of collaborating with anyone else in the band. Of course, that was also the point where John was insisting that Yoko be in the studio when none of the other wives were there, which also caused a lot of tension.