And you're right, it was the White Album where it first showed.
The hubris of McCartney, Harrison bursting at the seams, Ringo walking out (due to McCartney) and Lennon's mean, nasty "wit".
They had essentially lived together for 8 years by then, without a break for anything. They couldn't go anywhere without great fanfare and personal danger.
Twelve studio albums in 8 years. NOBODY does that (Stones were close). Movies, one of which is still a classic. Started a media empire, Apple.
In just 8 short years.
And well over 1,000 documented concerts up until 1966 when they had to stop.