You can enable the Chromedriver log to be able to see the communication between Chromedriver/Chrome/Chromium. In some cases that log will give you more indeep information that can help you if something is broken in your setup.

In your webdriverIO configuration file you can edit or add a section for the Chromedriver. There important thing is to have the path to the file (that will enable the logging) and then append to the log so all test logs to the same file. It will look something like this:

'wdio:chromedriverOptions': {
    logPath: `PATH/TO/chromedriver.log`,
	appendLog: true
}

Here's an example on how that is done in core.