Incorrect. Technically Matrix is a protocol, and a forum client can be made. You already have some PoC social media ones. It just so happens that most well known clients at this time and for instant messaging. But it can be much more.
uxellodunum
In the current pseudo-capitalist world economy, the rich do help in pushing a circular economy, in a variety of industries. If the rich are too taxed they'll more easily leave the country and move elsewhere. Your country loses a lot of its GDP. It's a bit of a chicken and egg problem, but it's also how the government of today runs, where everything is run on credit and paid for later.
Lean-governments are possible, but in such a case a government can never spend more than its GDP produces. No government would go that way right now, mainly because people aren't educated enough to make a decent argument for it, verbally or otherwise.
Your country either welcomes the rich, or answers to the IMF.
In summary//TL;DR: In a credit-based, credit-ran, loan-promised economy, greatly successful small and medium businesses are not enough to keep GDP high enough to pay off national debt.
over to Linux full-time back in ~3.15. I recommend you join the LUG Org (Linux User Group), as they have a load of resources in case you get stuck and have some people working on specialised Wine runners. They also run a Matrix Space that's worth joining.
For email and VPN, I recommend Proton. Even their free tier works well.
I'll disagree with it being too complicated, I've successfully managed to move my gaming community over, friends and even some family members, and response has been favorable over the past year (we had another attempt in late 2022 early 2023, but that didn't go well, so it's come a long way), and know of other similar situations from other HomeServers.
But I agree it needs some improvements and currently has some quirks, but all these are actively being worked on. From personal experience even those quirks are generally accepted however, when confronted with the sad reality of what is sacrificed by users using platforms like Discord. But one step at a time.
Edit: Forgot to add - You can screenshare without being on a call, it's currently in testing and works well but can be activated under Labs (Settings).
Element X is quite good now (note the X, not the classic 'Element'). Fluffychat's good too but missing some features.