Clickhouse is not something you use for a CRUD backend.
The obsession with Clickhouse is the phenomenal performance for the OLAP use case, a scenario where there were not many open source, easy to install and maintain options. For the most part you can treat it as a “normal” database, insert data into it and query it without messing about with file format conversions and so on. The fact that it is blindingly fast is a big bonus!