It will be interesting to see if Qualcomm end up deploying an open sourced standards compliant UEFI implementation. This would be a big deal in my eyes as the Raspi firmware solution is really a pain in the butt to deal with as it's closed source and the documentation is very fragmented and hard to comprehend if you're doing anything beyond their recommended approaches (for example, trying to use an A/B update scheme on a Raspi CM 5 with proper failed boot fallback is not straight forward without resorting to using u-boot as well).