Thanks for the ipv6 advice - I thought we needed ipv6 but turned out it wasn't necessary so I only did ipv4 for the later subdomains.
I changed your command to sudo ls -lR /etc/letsencrypt/{live,archive}/aws.osmium.app as we don't have .com, output:
$ sudo ls -lR /etc/letsencrypt/{live,archive}/aws.osmium.app
/etc/letsencrypt/archive/aws.osmium.app:
total 260
-rw-r--r-- 1 root root 1842 Jul 3 2021 cert1.pem
-rw-r--r-- 1 root root 1842 Dec 27 2022 cert10.pem
-rw-r--r-- 1 root root 1838 Feb 26 10:44 cert11.pem
-rw-r--r-- 1 root root 1842 Apr 27 23:28 cert12.pem
-rw-r--r-- 1 root root 1976 Aug 7 08:08 cert13.pem
-rw-r--r-- 1 root root 1842 Sep 1 2021 cert2.pem
-rw-r--r-- 1 root root 1842 Nov 1 2021 cert3.pem
-rw-r--r-- 1 root root 1842 Dec 31 2021 cert4.pem
-rw-r--r-- 1 root root 1842 Mar 1 2022 cert5.pem
-rw-r--r-- 1 root root 1842 Apr 30 2022 cert6.pem
-rw-r--r-- 1 root root 1842 Jun 30 2022 cert7.pem
-rw-r--r-- 1 root root 1842 Aug 29 2022 cert8.pem
-rw-r--r-- 1 root root 1842 Oct 28 2022 cert9.pem
-rw-r--r-- 1 root root 3750 Jul 3 2021 chain1.pem
-rw-r--r-- 1 root root 3750 Dec 27 2022 chain10.pem
-rw-r--r-- 1 root root 3750 Feb 26 10:44 chain11.pem
-rw-r--r-- 1 root root 3750 Apr 27 23:28 chain12.pem
-rw-r--r-- 1 root root 3750 Jun 27 10:55 chain13.pem
-rw-r--r-- 1 root root 3750 Sep 1 2021 chain2.pem
-rw-r--r-- 1 root root 3750 Nov 1 2021 chain3.pem
-rw-r--r-- 1 root root 3750 Dec 31 2021 chain4.pem
-rw-r--r-- 1 root root 3750 Mar 1 2022 chain5.pem
-rw-r--r-- 1 root root 3750 Apr 30 2022 chain6.pem
-rw-r--r-- 1 root root 3750 Jun 30 2022 chain7.pem
-rw-r--r-- 1 root root 3750 Aug 29 2022 chain8.pem
-rw-r--r-- 1 root root 3750 Oct 28 2022 chain9.pem
-rw-r--r-- 1 root root 5592 Jul 3 2021 fullchain1.pem
-rw-r--r-- 1 root root 5592 Dec 27 2022 fullchain10.pem
-rw-r--r-- 1 root root 5588 Feb 26 10:44 fullchain11.pem
-rw-r--r-- 1 root root 5592 Apr 27 23:28 fullchain12.pem
-rw-r--r-- 1 root root 5515 Jun 27 10:55 fullchain13.pem
-rw-r--r-- 1 root root 5592 Sep 1 2021 fullchain2.pem
-rw-r--r-- 1 root root 5592 Nov 1 2021 fullchain3.pem
-rw-r--r-- 1 root root 5592 Dec 31 2021 fullchain4.pem
-rw-r--r-- 1 root root 5592 Mar 1 2022 fullchain5.pem
-rw-r--r-- 1 root root 5592 Apr 30 2022 fullchain6.pem
-rw-r--r-- 1 root root 5592 Jun 30 2022 fullchain7.pem
-rw-r--r-- 1 root root 5592 Aug 29 2022 fullchain8.pem
-rw-r--r-- 1 root root 5592 Oct 28 2022 fullchain9.pem
-rw------- 1 root root 1708 Jul 3 2021 privkey1.pem
-rw------- 1 root root 1708 Dec 27 2022 privkey10.pem
-rw------- 1 root root 1704 Feb 26 10:44 privkey11.pem
-rw------- 1 root root 1708 Apr 27 23:28 privkey12.pem
-rw------- 1 root root 1704 Jun 27 10:55 privkey13.pem
-rw------- 1 root root 1704 Sep 1 2021 privkey2.pem
-rw------- 1 root root 1704 Nov 1 2021 privkey3.pem
-rw------- 1 root root 1708 Dec 31 2021 privkey4.pem
-rw------- 1 root root 1704 Mar 1 2022 privkey5.pem
-rw------- 1 root root 1704 Apr 30 2022 privkey6.pem
-rw------- 1 root root 1704 Jun 30 2022 privkey7.pem
-rw------- 1 root root 1708 Aug 29 2022 privkey8.pem
-rw------- 1 root root 1704 Oct 28 2022 privkey9.pem
/etc/letsencrypt/live/aws.osmium.app:
total 8
-rw-r--r-- 1 root root 692 Jul 3 2021 README
lrwxrwxrwx 1 root root 39 Jun 27 10:55 cert.pem -> ../../archive/aws.osmium.app/cert13.pem
lrwxrwxrwx 1 root root 40 Jun 27 10:55 chain.pem -> ../../archive/aws.osmium.app/chain13.pem
lrwxrwxrwx 1 root root 44 Jun 27 10:55 fullchain.pem -> ../../archive/aws.osmium.app/fullchain13.pem
-rw------- 1 root root 3414 Aug 7 08:07 key.pem
lrwxrwxrwx 1 root root 42 Jun 27 10:55 privkey.pem -> ../../archive/aws.osmium.app/privkey13.pem