You are not alone, I am also not sure about its benefits.
BarHocker
ScourgeBringer and still Witcher 3.
Press on with the mission?
You can rent serverspace from a provider. Sort of selfhosting around a corner.
That is too short. I still have no idea why I would want to install that on my server.
I feel like a lot of projects are missing a way to find out what they do without installing them.
I don't think they are hiding anything. They state Leta needs a big amount of users to be useful, and that they think Leta will not have them in the future.
Therefore Mullvad focuses on where they can be more effective: Browser and VPN.
If you don't mind the price, the Prusa Core One checks all these boxes. It is what I have and use happily, with PLA, PETG and TPU. I bought the assembly kit, and it was built within a weekend following the very good assembly manual. But you can also get it pre-assembled.
Material wise you can consider PETG, it gives me nice durable prints on my Core One.

I am using the "favourite/save" function similar to this. I do not get noifications but I can go through my saves every now and then.