ethereum2-docker-compose VS eth2-signer-api

Website: https://stereum.net/

Rennt a vps or dedicated server, use https://stereum.net to run your node.

No need to trust a service, rent a vps somewhere and use something like https://stereum.net/

🍄 Download at https://stereum.net/ or https://github.com/stereum-dev/ethereum-node/releases/tag/v2.0.0-rc.9

No competitor but you can use https://stereum.net/ and rent a vps somewhere. With allnodes you give them your keys.

There are different approaches, there are guides like https://someresat.medium.com/ and node management software like https://stereum.net/ (disclaimer: I'm with Stereum). Stereum also got video + pic/text guides so you get an impression on how it works. Also, try with testnet first, regardless what guide/software you're about to use!

Unfortunately yes, because there are many linux distributions, windows, macos, different ways to install JDKs, different JDK licensing, etc. I'd suggest to follow a guide like https://someresat.medium.com/guide-to-staking-on-ethereum-ubuntu-teku-f09ecd9ef2ee or use software that takes care of everything like https://stereum.net/

Yes it is - after you receive it you can use https://stereum.net/ to get up and running

Take a look at https://stereum.net/ there are guides for staking on AWS and other providers. Also possible to run on your own hardware at home.

There are options available to run on VPS/servers with a GUI to stake, like https://stereum.net/

Vouch also has an open API to talk to Dirk, at https://github.com/wealdtech/eth2-signer-api/ so anyone can create an alternative to Vouch with similar functionality if they wish. And Vouch is stateless when working with a remote signer such as Dirk: this again keeps the code footprint down, and allows multiple instances of Vouch to run at the same time on different servers, or in a fast failover mode, without slashing risk.