The tagging of a site is not dependent on the domain on which the site is located. So if you are simply migrating from one domain to another and do not want to change your tagging plan or your level 1 site, you can change the domain without making any changes to the tagging.
However, there is a point of attention: the domain where the cookies are deposited. If you were in first-party cookies and you forced the deposit on the waye.fr domain, you will have to modify this configuration by redeploying the smarttag.js file from Tag Composer. In third-party cookies, there is no action to perform on the tagging side.
In any case, we invite you to go to the Data Collection Portal in order to modify the main URL of the site, or the list of additional URLs.
Note that this information affects the detection of the traffic sources "Portal sites" and "Direct access (continuation of visit)". So it is better to update them.