Apps & automation.
The parts a business actually runs on, wired into the site rather than bolted beside it.
Bookings
Appointments taken on your site and written straight into Google Calendar — the calendar you already check, rather than a second system you have to remember exists.
Taking payments
Stripe or PayPal, whichever you already use. Deposits, invoices or a plain buy button.
On a site I build for you, that can be a full checkout on your own pages. On a page you build yourself in the page builder it is a button that opens a hosted checkout, because those pages deliberately run no JavaScript. The money arrives the same way; the difference is where the card details are typed.
Email at your domain
Forwarding from you@yourbusiness.com to the inbox you already read. No second inbox and nothing new to learn. $150 to set up.
A Google Business Profile is $250 to set up, or $350 to recover one you have lost access to. Moving a domain is $75, and DNS setup or migration $150.
The rest of it
Domains, DNS, analytics and your Google Business listing, all handled rather than left as homework.