Hello, I'm Quinn and here to help!
You're right, Clipchamp currently only supports exports up to 30 FPS, with no option for 60 FPS. Since it was built for quick, simple editing, higher frame-rate exports aren’t available yet. To request this feature, submit feedback through the Feedback Hub so it can be considered for future updates.
For now, if you need 60 FPS, I recommend editing softwares like VN Video Editor, CapCut, or DaVinci Resolve, which support higher frame rates.