I see where you're coming from, but certainly in the case of IG, that was happening to me as it was anyway. The same 4-5 IG profiles (sneaker pages) were just flooding posts up, some of which I liked which the algorithm took as me wanting to see even more of those posts and I never got to see anything from my friends. Eventually I unfollowed ALL of these pages, and unfollowed the rest of the business/semi-commercial profiles I followed so that now my feed while out of order, is just around 300 people and it's possible to catch up as normal.
Where Facebook started as a social network for friends and has since become more of a content platform for businesses rather than social interaction, IG has also went from looking at friends live's to basically adverts from influencers and pages just bombarding people with product images.