https://docs.meltano.com/reference/command-line-interface#environment Yet:

$ meltano --no-environment run tap-logzio-volume-hourly target-jsonl
A Meltano environment must be specified. Set the `default_environment` option in `meltano.yml`, or the `--environment` CLI option.
$ meltano --environment=null run tap-logzio-volume-hourly target-jsonl
A Meltano environment must be specified. Set the `default_environment` option in `meltano.yml`, or the `--environment` CLI option.

So this looks to me that Meltano 2.15.1 is basically broken. meltano --help even shows --no-environment as an option, but apparently that does not work.