I don’t think algorithms themselves are to blame but what they are tuned for. While engagement/eyeball hours for the adserver is the prime metric the quality of experience will be subservient to it. If the algorithms could better measure your mood and stimulation levels and maximise for that the effect would be less toxic. Ideally if it realised you were just mindlessly consuming it could suggest maybe you’ve done enough today and to try something else. But that I fear that is not something the owners of the various ecosystems want.