Mailgun vs LC Email · GoHighLevel w/ Robb Bailey

Mailgun vs LC Email

Hi, I've gotten some difference in opinions and wanted to know what you all think is the best way to go starting out?

LC Email or Mailgun?

I have an agency in GHL and 2 subaccounts (One for my first client and one for prospecting marketing leads). Let me know if I understand the setup correctly.

In the agency view you can setup LC or Mailgun which propagates out to all of your subaccounts. Mailgun has more functionality but LC is easier. Either way this will send a subdomain of whatever email you have to clients for each subaccount. For this example let's say we use subdomain "mail"
The agency doesn't have any email attached to it whatsoever.
Each subaccount will have their own domains email separate than LC or Mailgun.
It's recommend to purchase a brand new domain rather than using your clients domain as it can cause blacklisting. ie. buying offersmycompany.com and using that for all email marketing activities and not risking mycompany.com rating. Same thing goes for usemymarketingcompany.com for email marketing and not using marketingcompany.com. If these are managed by me, then I don't have to worry about accessing the client's godaddy, cloudflare, etc.
In addition to the above, I also need a google workspace acct to manage the emails there?
The final version of emails coming out of the subaccounts would be mail.offersmycompany.com (client) and mail.usemymarketingcompany.com (my marketing).
Anything else, did I explain it right?