In Avengers: Endgame, when a few of the Avengers went to New York (2012) to retrieve one of the much needed Infinity Stones, Loki grabbed the Tesseract and escaped his captors, who were the 2012 versions of the Avengers. This show answers the question of where Loki ended up after using the Space stone.
Loki, by using the stone, created alternate realities, or a branch in the timeline. So, the TVA (Time Variance Authority) reset that branch, and there is only one remaining timeline left. It is later revealed that the TVA’s job is to make sure there are no alternate timelines, and they were given this job by the Timekeepers. When someone travels off of their timeline or changes something that shouldn’t be changed (according to the TVA) that person becomes a Variant, meaning they are an alternate version of themselves. The mysterious Timekeepers are in control of the TVA, and they are the ones who look into the future and give instructions on the way events should be taking place.
This show is really entertaining. I think that it shows us a different part of Loki’s personality and character. Since he has been portrayed as a villain most of his time in the MCU, this is an extremely important part of Loki’s developing personality. Another part about this show that I liked was how there were constantly plot twists and new things being revealed to both Loki and the viewer. I would recommend you to watch this show if you are a Marvel fan or enjoy exciting and adventurous TV shows.