Custom Secure Boot keys on T14 Gen 2 Intel

I found [a thread in Lenovo support forum](https://forums.lenovo.com/t5/Other-Linux-Discussions/Reports-of-custom-secure-boot-keys-bricking-recent-X-P-and-T-series-laptops/m-p/5105571) in ArchWiki saying that enrolling your own keys without those from Microsoft and Lenovo can brick your machine. Does anyone know if T14 Gen 2 (Intel) is affected? Is it possible to recover from such a brick?