The season is highly regarded by critics, maintaining high scores on Rotten Tomatoes and IMDb. The finale, "Winner," is one of the highest-rated episodes in the entire series.

Psychological grief and emotional withdrawal. Jimmy avoids processing Chuck’s death, leading to a "transmutation" where his internal Jimmy McGill persona begins to fade into Saul Goodman. Key Character Arcs TV Review – Better Call Saul Season 4 - PopCult Reviews

The fourth season of Better Call Saul , which premiered in August 2018, serves as a pivotal bridge in Jimmy McGill’s transformation into the sleazy "criminal" lawyer Saul Goodman. Following the death of his brother Chuck, the season explores Jimmy's descent into a moral vacuum and his eventual, official adoption of his new professional alias. Episodes: 10.