Yes, Techno Launcher is completely safe to use, it doesn't contain any malware or malicious software.
Yes, Techno Launcher is completely free to use.
Currently, Techno Launcher only supports Windows 10/11. But, on future Techno Launcher will also be available for MacOS/LINUX and other operating systems.
Techno launcher supports all modern Minecraft versions including snapshots.
No, Techno Launcher isn't made for improving FPS. Though, it gives about same FPS as SKLauncher.
No, You can only play cracked Minecraft through this launcher.