When I think about it, no.

People make the decision between different ecosystems, and Apple and Google are the biggest. Apple has a tight control over Safari on iOS. Safari has been defeated on Desktop though.

I disagree. Safari way outperforms Chrome on MacOS while using considerably less battery.

I know, it's behind on some features/standards though.

Not only is it missing a lot of features, many of the features it has implemented are buggy to the point of being unusable. Try speeding up an HTML5 video for a quick example of something people often do that is not implemented correctly in Safari.

I work with many not very technical mac users who mostly use apple provided apps like mail, notes, reminders and icloud. Only thing everyone installs is Chrome.

Safari desktop is quite dead.

I do use Safari on the Mac (and Firefox for some things). Safari uses resources far more efficiently, it has a reader view, and its layouting doesn't make the page jump around quite as much as other browsers do.

Many websites are barely usuable in Chrome but acceptable in Safari.

I am only talking about marketshare.