Downside of too many databases on a single node InfluxDB setup?

Assuming we are using a large enough machine (eg 4 vCPU and 24GB ram), are there any limits or drawbacks to having too many InfluxDB databases within an InfluxDB instance? (E.g. we’ll have lots of databases that only have 1 measurement in them.)

I want to use InfluxDB to store IoT sensor data, but we will potentially have a wide variety of measurements including lots of “one offs”.

I’ve read that minimizing series cardinality, having databases contain similar data, and creating separate databases for different data types can improve parallelism and performance, but are there any drawbacks of having too many databases?