The 'freshness' is possible because it's a domain validated certificate - domain validated certificates are < 1 min, and normally cheap or free, as all you have to do to get a domain-validated cert is have an official sounding email address, publish a DNS text record, or some other way to show you have control of the domain. Domain validation doesn't require any investigation of the identity behind that domain, which is why they don't show the company name or the green bar. In Edge, domain validated certs show a hollow grey lock. [1]
EV certificates require checking the actual company - government registration, business status (eg, do you pay your taxes), does the person requesting the certificate have authority to take actions on behalf of the company, does the company have a verifiable physical address, and more [1]. They then show that company's identity in the certificate and browser - as the company name in a green bar.
Nearly everyone you speak to will quote a either a vague figure or 7-10 days to provide an EV cert.
CertSimple only does EV, and our average certificate issuance time is 5 hours. We've been doing them even faster than that recently - check the tweets on the front page of the site. A big part of that is that CertSimple checks a whole bunch of your company's information before you pay us any money. [2]
[1] https://certsimple.com/blog/dv-ssl-in-microsoft-edge
[2] https://certsimple.com/blog/are-ev-ssl-certificates-worth-it
[3] https://certsimple.com/blog/checking-orders-before-you-pay