Getting Newer Version of Nheko

[publiclewdness]

So I got it working. What I had to do beforte entering the command I did above was enter

"flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo"

Out of all the Matrix clients I tried, only Mirage actually worked (although super laggy).
And Weechat of course without lag, but that's an IRC client that happens to have a Matrix plugin.

I tried to install Nheko before, but I couldn't run it I think.

Nheko is one of the few Matrix clients to support E2E which is why I wanted to use it. It is also the only one I have tried where E2E is able to be setup from a simple toggle from the menu and also the only client I have seen where you can adjust scaling from the options menu.