The comics provide the source material and inspiration for the TV series. Many of the characters and storylines are adapted from the comics, but there are also some differences and creative additions in the show.
The show is reasonably true to the comics. There are minor differences here and there, but it captures the essence and key moments of the comic book series pretty well.
It's reasonably faithful. The main plotlines and character developments are similar, but there are some minor differences for the sake of the TV format.
In general, the Umbrella Academy series followed the comics closely. There were some differences for the sake of adaptation, but the core plot and characters remained intact. Some visual elements and storylines might have been tweaked to fit the medium of TV, but it stayed true to the essence of the comics.
In general, the show has similarities to the comics, but there are noticeable differences. Some characters' arcs and storylines have been modified for better TV presentation.
The Umbrella Academy comics offer a raw and unfiltered experience. The TV version tones down some of the darker elements and adds a bit more humor and drama to appeal to different viewers. Plus, there could be changes in the order of events or the introduction of new subplots.
The comic is the origin of the TV adaptation. While they share similarities, the TV show might tweak elements to make it more appealing to a wider audience or for production reasons.