I don’t have that board.
But I’ve tried installing Proxmox VE on a Broadcom Stingray PS225-H16 Dual 25GbE DPU (8C 3.0Ghz arm64, 16G RAM) and running RouterOS Arm64 CHR on it. It worked, but the performance wasn’t very good compared to the CCR2004 PCIe at that time. (That was like 2 year ago — since then, CHR has been optimized a lot. I heard that version 7.20 brought major improvements to virtio. I’ll give it another try when I have time.)
As long as you install the proper QEMU or PVE on that board, you should be able to run CHR on it.
Edit 1: here is the result: Just for fun, running RouterOS v7.20 CHR on Broadcom Stingray PS225-H16 Dual 25GbE DPU