95% is probably a bit high, but I empathise that while indie games are heralded as the antidote to the various malaises brought on by the big studios, they aren't everyone's cup of tea.
Unity is perhaps still predominantly the domain of indies, but the Unreal Engine supports Mac, which is honestly the most important one. Perhaps things will regress a bit with the new console releases as graphical fidelity takes the limelight again and Unity is pushed away by big studios, but I think the point stands that many commercial engines are supporting Win/Mac/Lin/XB/PS and thus there's little reason not to release on all platforms.
Big projects take a long time to finish - the changes are pretty clearly happening but it's going to take a few years.
Unity is perhaps still predominantly the domain of indies, but the Unreal Engine supports Mac, which is honestly the most important one. Perhaps things will regress a bit with the new console releases as graphical fidelity takes the limelight again and Unity is pushed away by big studios, but I think the point stands that many commercial engines are supporting Win/Mac/Lin/XB/PS and thus there's little reason not to release on all platforms.
Big projects take a long time to finish - the changes are pretty clearly happening but it's going to take a few years.