These specific versions of the NSX Advanced Load Balancer and NSX-T manager are reported as not supported in SDDC Manager when attempting to deploy NSX ALB.
VCF 5.2
These products are not listed together in the VmwareCompatibilityData.json despite being supported as per the Broadcom interoperability matrix.
Bypass SDDC Manager upgrade compatibility checks when upgrade is unavailable due to missing compatibility data
https://knowledge.broadcom.com/external/article/323368/