This is going to be somewhat useless for business collaboration if there's no web accessible version for non-Mac users. Hopefully they release a web-enabled version like they already have for Pages etc.
You mean you don't work in an all-Apple office?
This has the potential for being another, "Just one more reason..." for accelerating the movement to Macs from WinTel. It's a much smaller reason than others, but sometimes the tipping point turns out to be a small thing.
I wouldn't expect Apple to make a web version of this. They do that when they have a service they'd like to sell to a wider audience, such as Apple Music and Apple TV+. Free apps like this, iMessage, and FaceTime are used as hooks for hardware sales.
Leaving aside the performance benefits of M1/M2, I've felt the biggest corporate benefit to having Apple Silicon Macs is the unified software architecture across all platforms. For the many companies that are Apple-mobile-Windows-desktop and already have a suite of company-exclusive iOS/iPadOS apps, the ability to easily port those apps to Mac is the biggest game changer - why develop/support apps on two or three distinct software platforms (iOS, web, Windows) when you can support just one?
The new collaboration features announced today - not just this one, but the share sheet enhancements, extension of SharePlay, etc. are all signs of Apple taking an aggressive stance on "switch to Apple hardware and get all these goodies at no extra charge." While there will always be a market for "industrial-strength" apps of all descriptions, this kind of baked-in collaboration will be more than enough for many organizations.
But let's get real - there will always be a limited market for business collaboration tools of this sort. Most "teams" remain very top-down. A presenter/trainer will benefit from having a built-in white board app, and every so often they may do a group exercise of some sort, but on the whole most workers do not collaborate with a team, they take marching orders and work independently.
Back in the '90s when I was working corporate IT they still said, "Nobody gets fired for buying Big Blue." In another 5 years or so I can see that being said of Apple. Considering how I've believed that Steve Jobs always modeled his vision for Apple on old-time IBM (closed systems, unified software/OS/hardware development, etc.)... If there was such a thing as Steve Jobs' Ghost, he'd be smiling today.