The Beatles' discography is filled with moments of musical joy and personal pain, with George Harrison experiencing significant struggles within the band. Despite the band's success, Harrison faced challenges in getting his songs on albums due to the dominance of Lennon and McCartney. The strained relationship between Harrison and McCartney led to tension and unhappiness within the band, culminating in Harrison writing songs about their troubled times together. Harrison's confidence as a musician was affected by McCartney's influence, highlighting the complexities of their relationship and its impact on Harrison's career.
Source: https://faroutmagazine.co.uk/george-harrison-paul-mccartney-ruined-him-as-a-guitarist