In the late 90s Microsoft was IMO, pretty clearly a monopoly while Apple survived as a beacon of "See guys - we're not technically a monopoly" - having a compet

In the late 90s Microsoft was IMO, pretty clearly a monopoly while Apple survived as a beacon of "See guys - we're not technically a monopoly" - having a competitor isn't enough to not be participating in an anti-competitive market, the manner in which Android and Apple have a complete dominance of the market is pretty insane and it makes both of their business decisions fair game for anti-trust arguments.