yes, that will be more future proof. as endpoint’s cert has a bunch of subdomains of api.letsencrypt.org on it.
DNS : acme-staging-v02.api.letsencrypt.org
DNS : acme-staging.api.letsencrypt.org
DNS : acme-v01-1.api.letsencrypt.org
DNS : acme-v01-2.api.letsencrypt.org
DNS : acme-v01-3.api.letsencrypt.org
DNS : acme-v01-4.api.letsencrypt.org
DNS : acme-v01-5.api.letsencrypt.org
DNS : acme-v01.api.letsencrypt.org
DNS : acme-v02-1.api.letsencrypt.org
DNS : acme-v02-2.api.letsencrypt.org
DNS : acme-v02-3.api.letsencrypt.org
DNS : acme-v02-4.api.letsencrypt.org
DNS : acme-v02-5.api.letsencrypt.org
DNS : acme-v02.api.letsencrypt.org