The transition of the major social networks over the last 10-15 years -- from being a space for friends to interact to being a space to consume content produced by "unconnected" entities like influencers -- has created a huge opening for someone to claim the friends and family network. There is no one better positioned (at least in the U.S. where iPhones are the majority handset) than Apple.
So long as Facebook remains available to everyone, even if the content feed is a mess, the event planning space is going to be more accessible to everyone and will end up being the defacto friends & family ecosystem.
I'm not an iCloud+ member, so I can't go in an look for myself, but ideally this would be just a fancy way of extending your iCloud Calendar invites where Gmail, Outlook, etc. users can still create events and invite people in roughly the same way. If as a Linux & Android user I am only able to RSVP to Apple users' invites, but I am never able to invite them to anything myself, then I literally cannot embrace this product without investing considerable money into their hardware, which I am not going to do.
Hell, if they featureset was compelling enough, and they had an iCloud app for non-Apple hardware platforms, I might actually consider being an iCloud+ member, but I guess it's not worth it to Apple to collect a monthly payment from me if I won't make the downpayment on an iPhone and a Macbook...
You can create events from the web iCloud interface without an Apple device.
For now. We're in the process of seeing Twitter die like every other social network has died before it, Facebook will have it's time as well.
They are completely aware of it an actively leverage it to use your friends and family against you to force you into Apple's ecosystem. It's the main reason why Android will have to get pretty bad before I bend to such incredibly dirty tactics.
This is not a given even today. Creating a new Facebook account involves a ton of scrutiny, you need to upload an ID, and until your account is older and established it’s likely that anything you do can get auto-scanned by some spam bot and get you banned for using some keyword, even in private chats.
I don’t have a Facebook account but I needed to create one a few years back to use my oculus quest (this is before they finally came to their senses and separated the accounts) and I had a lot of trouble convincing FB that I was a real human.
Recently I made a new Facebook account to go with my Quest 3 VR headset. I don't find too much appealing about Facebook, posted a little, haven't used it much. I wanted to make an Instagram account because I want to post flower and sports photographs, really inoffensive stuff that would do well on the platform. Whenever I try to create an Instagram account, linked to my Facebook account or not, I get a message saying there was an error and I should try again later but later never comes.
Talking to support about it gets no response. I don't know if my history of deleting my account long ago is the cause or if it is something else.
A person I know who committed a misdemeanor is now on probation and one term of his probation is that he stay off social media, though he can use ordinary web sites. I saw a poster for a board game club which is exactly the kind of community activity that his probation officer would approve of, but the only information on the sign is the title and a QR code that points to... A Facebook group. There are plenty of other people who choose not to use Facebook for various reasons who are also excluded by this.
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The world badly needs something to support community organizations because of the problems pointed out in this movie based on Robert Putnam's work:
https://www.joinordiefilm.com/
It's not difficult to approach this as a startup, but it is a devilishly hard problem to sustain it without being attached to something toxic like personalization-based advertising. There are plenty of foundations which could afford to fund this kind of effort (e.g. you could kill it at $1M a year if you weren't paying Bay Area wages and didn't have nonprofit bloat) but if anything the ability to fill out the paperwork from grants is inversely proportional to being able to execute on this sort of thing.