For the benefit of others, that note comes from this page:

https://wiki.hypr.land/Getting-Started/Master-Tutorial/#forc...

It has been common for years to use such flags for Electron-based apps on Wayland. It's not specific to Hyprland, and it's not as bad as it sounds. Chromium has been working on Wayland support for years and it was behind a feature flag. It's worked well for a while now and will be the default soon. https://www.phoronix.com/news/Chrome-Auto-Ozone-Platform

It's pretty common to need to hack stuff for tiling window managers. Java/Swing has required faking being LG3D since forever for example to run some compatibility code paths. Yeah, Looking Glass.

They clearly managed to make the window manager, so evidently it was not.

Code works just fine with Hyprland in my experience, you just need yo tweak the interface scaling. However, I've taken the opportunity to learn neovim since switching to arch/Hyprland, since the emphasis is much more on keyboard-centric input. Can't say I miss vscode much, other than multi cursor.