I see a couple of other comments reccomending exfat; I’ve had problems with exfat with both the Steam flatpak and the Steam system package. Exfat does not support linux symlinks which are needed for some if not most Steam games to work properly. You will have to re-install your games onto an ext4 or linux-friendly filesystem, for Steam at least.

Emulation and GOG is a different story though. I have both on an exfat drive and I can access and play them with both windows and linux.

In terms of security, you will be at a slight risk using an unsupported os in the future. But hey, some people I know are still on Windows 7, so it isn’t a huge risk. As long as you practice basic computer hygene and have an antivirus running (windows defender (easy), malwarebytes (secure), or clamAV (open source) are decent picks) you’ll be fine.

Yes, you can find it in the themes directory. It also has really good documentation on github in case you want to make custom collections or swap out game system cover art. I went down the qml rabbit hole because of pegasus, it was super fun

No problem! I think it depends on the theme. I use the Retro Mega Next theme which is optimized for handhelds, but it works great with mouse and keyboard.

I use Pegasus at the moment as it’s extremely customizable, although it does have a bit of a learning curve since you do most things through media.txt files. You can configure launch commands, box art/media/videos through an external scraper (I use Skyscraper), and you can point to bash files which opens up use of the terminal for basically anything you want to do OS side. It also has many different themes, basic metadata, and sorts games by system.

Emulation station is also another popular choice and is more out-of the-box minded bit still requires a bit of know how.

I also really like Playnite because it’s video game sorting heaven, but sadly it’s windows only and is really janky in wine/lutris. I eagerly await the day a working linux port arrives.