Hello @ohtannenbaum,
By default, WordPress uses the php mail() function to send emails and some WordPress hosting service providers restrict usage of this PHP Mail function temporarily or permanently to reduce the automated spam. I guess in your case this is the reason behind not getting emails.
The solution to this problem is to use an SMTP plugin to send emails. Unlike the PHP mail() function, SMTP uses proper authentication which leads to high email deliverability. Some of the popular SMTP plugins are – WP SMTP, WP Mail SMTP by WPForms, Easy WP SMTP, and many more.
Another solution is to directly change it from the database –
->Login to your database
->go to users table
->search for admin
->open admin and look for email address
->change the email address and save it
I hope this solves your issue.