Exactly
Apart from Xbox Live back in 2003 they’ve introduced nothing positive to gaming.
Their two biggest “first party” games weren’t even developed by Microsoft.
Halo by Bungie, which was well into development on Mac before being acquired by Microsoft. Since Bungie left the series has died.
Gears by Epic, as above the series has declined once it was left to Microsoft to develop.
For most gamers Xbox won’t be missed.
I don't agree with the bolded; Microsoft have innovated in a lot of ways in the gaming space that have reverberated throughout the industry, and I'd argue the reason for their dwindling success is that they stopped doing it.
Microsoft brought fragment shaders to the console realm with the OG Xbox, which helped standardise this technology much faster. Back in the dark days of every vendor having their own bespoke implementation of this and that, that kind of north star standard was super helpful. This push also helped make multiplatform development between console and PC more approachable, which continues to this day, and has been a massive win for everyone.
Microsoft brought hard drives as standard to the space, which had huge benefits to both the player and the developer, despite costing them more to manufacture. I don't miss memory cards at all.
Microsoft helped foster the birth of the indie scene with Xbox Live Arcade, with the poster child for that initial wave being Braid. With initiatives like XNA, they really tried to help indies get their foot in the door of the console space, which was a central pillar in the rise to the indie scene as we know it today.
Microsoft created achievements, which can be seen as both good and bad, but the concept didn't exist at a platform level until they realised it was a way to help foster deeper engagement on a per-title basis, helping players get more out of their games, and keep people playing on their platform longer.
Microsoft's cross-platform initiatives - enhanced backwards compatibility and Smart Delivery - are the gold standard against which everyone else is measured. They've shown there's good business is keeping older titles around longer, and shown that there's no reason I shouldn't be able to play the "Next Gen version" of any given game using the disc from the prior generation.
In terms of their studios innovating on a per-game basis, that's a wider problem, but I'd say Microsoft at a platform level has done many good things for gaming, and the gaming space will be worse off once they transition into a third party publisher and leave Sony alone on its throne.