MSI began to share a new bios version for its B550M Mortar motherboards. The interesting thing is that it has Agesa ComboAM4v2PI 1.1.9.0 which supports AMD's Smart Access Memory function. However, also spotted is the new Curve Optimizer.

Currently, the BIOS is only spotted for the B550M Mortar and the B550M Mortar WiFi which can be downloaded here.  MSI currently does not mention this function in its descriptions just yet. With Clock Optimizer, the processor can dynamically undervolt and overclock itself, allowing the CPU to achieve a higher clock speed without sacrificing efficiency.

A Redditor has gotten AMD's Infinity Fabric technology ( flck ) at a speed of up to 2100 MHz, but it only booted Windows. It was not yet completely stable.

Sources: MSI (1) , (2) , Reddit, Hardware Info