Hi,
It looks like your ESXi 8.0.3 host joins the domain fine, but you're only able to log in with the root account. Let's go step by step to figure out what's going on.
First, can you check if the domain is actually recognized by ESXi? Run this command and let me know if your domain appears in the output:
If the domain is there, the next thing to check is whether ESXi is properly seeing users and groups from Active Directory. Try running these commands and share what you get:
These will show a few domain users and groups. If nothing shows up or the output doesn't look right, it might mean ESXi isn't pulling AD info correctly. Let me know what you find, and we'll figure out the next step together!