Sorta, kinda, but not really.

OS/2 may have been a better Windows than Windows during the Warp days 30-ish years ago. It was also a very competent operating system in its own right.

We all know the story:

It never had a broad base of native applications. It could have happened, but it did not happen. Like, back then when Usenet was the primary way of conducting written online discourse, the best newsreader I had on OS/2 was a Windows program; the ones that ran natively on OS/2 weren't even close.

And OS/2 never had support from a popular company. There were times at OS/2's peak (such as it was) when it was essentially impossible to buy a new computer with OS/2 pre-installed and working correctly even from IBM.

Linux, though? Over those same 30-ish years, a huge amount of native applications have been written. Tons of day-to-day stuff can be done very well in Linux without even a hint of Wine and that's been reality for quite a long time now.

The missing piece, if there is one, is gaming. It'd be great to have more native games and fewer abstraction layers. But systems like Valve's popular Steam Deck and upcoming Steam Machine are positive aspects that OS/2 never had an equivalent to. And since Steam is very nearly ubiquitous, companies that sell computer game software do pay attention to what Valve is doing in this space.

(And frankly, when a game runs great in some Steam/Wine/Proton/Vulkan shapeshifting slime mold abstraction stack, I really do not care that it isn't running natively. I push the button and receive candy.)