ActionStitch runs on Windows and macOS. Currently it is under beta testing and no license is required to run the program. You can download the program and try to stitch these two videos (left and right) taken by GoPro Hero Black 10.

File name Type OS CPU Size SHA256 Checksum
actionstitch_0.9.exe Installer Windows x64 101,516,512 34e179dbb9c997ee8acf10398cc4351d090f896bac1ca9c0d0e190b145973c27
actionstitch_0.9.dmg DMG macOS x64 108,242,842 7f21e4b486d94d563ce6fe4e4f24a92529ccb2aa598679f7b59b4a7683356785