SSL Certificate Expiration and Renewal

What is the current state of the SSL certificate renewal process in openbalena in version 20? When I installed the server I opted for automatic SSL configuration via ACME challenge, using cloudflare as the DNS provider. Now my worry is that I will run into problems in 2 or 10 years once the SSL certificates expire. Can anyone comment on the robustness of the automatic renewal and/or what problems I can expect once the certificates expire? Also, if the certificates expire and the renewal does not work, will I loose access to the devices?