If you own multiple gaming laptops or handhelds, carrying your "Portable Lossless Scaling" folder on a tiny thumb drive means your custom profiles for specific games travel with you. Important Considerations

For Lossless Scaling to work, your game must be set to "Windowed" or "Borderless Windowed" mode. It cannot scale a game that is already in exclusive full screen. If you'd like to dive deeper into this, let me know:

Once installed via Steam, you can navigate to the local files (SteamLibrary > steamapps > common > Lossless Scaling).

Same performance. No downsides except missing Start Menu shortcut.

Even with a portable folder, the app may occasionally check for a valid Steam license. Ensure you log in to Steam at least once on the device.