Checking if a site collection exists

[matjaz-r]

Hello!

In SharePoint Admin center, I changed Site adress (URL) and Site name.

Exampel:
Old: https://company.sharepoint.com/sites/SiteA
New: https://company.sharepoint.com/sites/SiteB

When I ckeck if OLD site collection exist:
bool siteExist = await pnpContext.GetSiteCollectionManager().SiteExistsAsync(siteUrl);

I get true.

When i got to changed site collection I see new Url (Name)

When I Enumerate all webs in a site collection and write out Url and name I only see NEW site collection data.
I also can not crete new site collection with Old name.

Does it take some time that changing Name and Url takes in effect?
Do I have to changes in some other way, powershell?

Thank you, Matjaz