Artists simply evolve over time, and Feid is no exception. When someone's been in the industry for years and has success, they start experimenting with new sounds, working with different producers, and their artistic vision changes. Sometimes it's deliberate - they want to explore new territory because they've already mastered what came before - and sometimes it's organic, just that time has passed and their influences have shifted.
In his specific case, it's probably a mix of both. He may have consciously decided to move away a bit from what characterized him before so he wouldn't get stuck, but it's also normal for an artist who keeps growing and gaining international relevance to seek out new collaborations and new sounds. The producers he's working with now probably come from different backgrounds, and that influences how everything sounds.
What's interesting is that it doesn't mean it's better or worse, just different. There are fans who prefer his earlier sound and others who vibe more with what he's doing now. Both perspectives make sense. If you've been following him for years, you'll probably notice that this is just a natural part of the creative process for any musician who doesn't want to repeat themselves.