Migrating a production app from Heroku ACM certificates to CF SSL certificates

Besides being an active application, the apex domain, and a few subdomains, have their own certificates from a variety of different managed cert issuers.

Current setup:
  • DNS fully managed by CF
  • Custom SSL/TLS, FULL
This migration was originally started because Heroku ACM failed to upgrade our staging env and I read on Heroku that it made sense to switch from both to just CF, however the failure was a hiccup I hadn't seen in 3 years.

Even though the migration is unnecessary for now, are there any concerns based on our setup above?

Much thanks!
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