Greetings,
Requesting assistance with Boot Runner following purchase, download, installation, and setup (including accessibility permission and SIP mod as instructed). On restart, MacBook Pro 13 inch (2018, 4 Thunderbolt 3 ports) loads directly into Big Sur without loading Boot Runner. Boot Runner appears to be completely non-functional at this time. Thank you for your assistance, and please let me know if this has been addressed in another thread.