cucumber-rails | Rails Generators for Cucumber with special support | Functional Testing library

FINAL EDIT: I gave up and just did a full reinstallation of WSL2 and everything. Worked great. So if you're somehow dealing with this same problem, a hard reset may be a viable option.

I have already looked at many previous Stack Overflow posts, most notably this one whose second solution is echoed across most other posts on the topic, which is to extend the internal timeout to allot more time for the browser to load pages that take more than the default 60sec.

The Cucumber tests I'm running are small (the one I'm using as a baseline for this is 4 scenarios with 16 steps) and pass virtually instantly when not using Selenium, the pages are mostly static and I just want to be able to see it run+process popups in future tests, so I don't need more load time.

These tests were all working perfectly fine a few months ago (June), but when I reopened the same repo, completely unmodified now I'm unable to run any of the tests with selenium - it doesn't even open the browser anymore when run. As such, I get the feeling it doesn't have to do with my project settings, because none of it has changed. Even so, I've uninstalled the gems and reinstalled them, updated them, all to no avail. I don't know what local system settings/environment variables could have changed during this time, as I work on the app exclusively through WSL2, which I haven't touched since the last time I opened this specific project. Any ideas on this front would be very welcome.

The only configuration I've done for Capybara is setting Capybara.javascript_driver to either :selenium or :selenium_headless between testing sessions in my env.rb file, everything else is running default. My firefox and geckodriver versions are compatible.

Versions:

• Ubuntu - 20.04.1 LTS
• Ruby - 2.5.3
• Firefox - 92.0
• Geckodriver - 0.29.1
• xfce4 - 4.14 (ran apt list -a xfce4, as xfce4-about gave me an error: 17:02:48.578: No vendor information found in "/usr/share/xfce4/vendorinfo".

Relevant (?) Gems :

• selenium-webdriver (4.0.0.rc1)
• webdriver (0.18.0)
• cucumber (7.0.0)
• cucumber-rails (2.4.0)

Please let me know if more information of any type is required, thank you.

EDIT: Relevant Github repos: last working version from a few months ago, most recent development branch as of this post

EDIT 2,4,5: Logs for one Cucumber scenario after setting geckodriver log level to trace:

I have a Rails (5.2.3) application to which I'm trying to add a chat feature so the users can communicate with each other. I have not fully implemented the feature, as I am trying to write tests as I go (if I don't know how to write tests for what I'm trying to test, I often do it this way). So far, I have two regions of the relevant page of the application laid out in HTML for the sending and reception of chat messages, JavaScript that runs the rest of the page, JavaScript that is intended to run on page load that makes the regions for the chat feature fill out the correct space of the page, JavaScript that listens to the textarea for chats to send, and JavaScript that listens for broadcast chats. The relevant test mimics what I can do at the moment in the development version: type text in the sending </code>, hit return, and see the message in the