Does pg_dump Zabbix DB in PostgreSQL with TimescaleDB need adding '-Fc' option

[wyang]

I am a beginner of PostgreSQL and TimescaleDB. As per TimescaleDoc https://docs.timescale.com/self-host...ntire-database, the command to backup a database named tsdb is

pg_dump -Fc -f tsdb.bak tsdb​

which uses '-Fc' option (output file format custom).

I was wondering if this option is needed for zabbix db backup? or output file format plain text (default) is good? Thanks very much!