apparently ZeroSSL has a cross-signed root until 2029 from AAA Certificate Services, which means it works from Windows 2000 and up - it was in the Microsoft Root Program by 2006.
curious if Win 2000 will actually validate it, since it contains a sha384 signature
The PS3 actually supports TLS 1.2, and has a limited selection in the root trust store, making this an actual use case, albeit niche - considering you have a whooping 200 MB for your JS heap, and a whole 56 MB for page content, according to the web content guidelines.