I use Grafana 7.3 and InfluxDB 1.8.3. I have 5 databases in InfluxDB which are data sources in Grafana and it is all working nicely for work. We do not use the enterprise Grafana (maybe one day) or the Enterprise Influx.
I see there is a newer version of InfluxDB and wondered if it's worth upgrading to 2.x I've read some forum posts, and some have had issues. I have not read up on the upgrade process fully yet tbh though.