"We need to provide a better FOSS alternative to <corporate service> to make software free" is exactly the kind of individualist, 'free market' thinking that got us proprietary tech monopolists in the first place. You're not going to beat them on their game.
Instead, try thinking not just about what you can provide that the big tech vendors cannot, but more importantly about what needs to change politically.
Maybe "improving efficiency" shouldn't be the goal, and instead it should be "caring less about efficiency and more about social sustainability", for example.
@joepie91 how about optimizing for self sovereign users and no servers?
if business cant squeeze in ads and cant control user data, there is no incentive for them to venture into that kind of field of software.
if this cannbe combined with a supportivr culture for devs to maintain their work, i'd say we win 🙂