because the domains tend to be cheaper when they don’t end with “.com”.
did a quick check with a weird domain name to not hit reserved ones etc,.
on one domain hoster .com was the second cheapest, only one other offered was cheaper all others offered were more expensive than .com looking at name.com it showed some bit cheaper ones like .pro or .life but majority seems definitively more expensive than .com also most spam i got (as long as i got spam) was genuinely (spf) from .com domains that days. however i do not really get much spam any more 😁