@MagNYC,
The full releases like ESXi 8.0 Update 3e are made available for free, but subsequent smaller patches (like 3f) are typically reserved for customers with active support contracts. This is because patches are often delivered as part of the "Solutions" section of the Broadcom support portal, which requires a license to access.
For access to all patches and full support, a paid VCF/VCF license would be required. This is usually not cost-effective for a typical homelab, but it's the only guaranteed way to get all updates directly from the vendor.
Downloading patch 3f from Broadcom's official portal is highly unlikely without a paid license. Your best bet is to continue using 3e or purchase a license if frequent patching is a high priority.