Check out Biff, it's very thoughtfully made: https://biffweb.com
I have no doubt that XTDB is good, it is just surprising as a first choice and is not going to be easy to get up and running compared to the conventional alternatives
(Is there even a hosted offering for XTDB? I like that it's open source but seems that you will have to grapple with all this stuff including a Kafka cluster https://docs.xtdb.com/guides/starting-with-aws.html)