URL Redirect for Stale Links

I have stale URLs that exist in old marketing emails that point to an old support system that is no longer being used (Example support.example.com, URL example support.example.com/en/articles/999999).

Goal is to redirect either the specific URLs to a new path (i.e. support.example.com/en/articles/999999 to example.com/help) OR all paths after the subdomain to the new URL (support.example.com/* to example.com/help)

I'm aware of two options, tried both, and neither work completely...

1. URL redirect in Namecheap (support.example.com --> example.com/help), this is fine if the URL is simply support.example.com, but does not work if there are paths support.example.com/en/articles/999999
2. 301 redirect in Webflow works for example.com/en/articles/999999 --> example.com/help, but does not work if the subdomain is a part of the URL

Are there other options to redirect a URL with a subdomain and paths to a new URL given my tools are Namecheap and Webflow? I have many other subdomains, so not sure a wildcard subdomain would be an option.