I'd been at my company for two years when the pandemic hit, and I continued learning loads by osmosis through a daily 30min team Webex "turn your mic and camera

I'd been at my company for two years when the pandemic hit, and I continued learning loads by osmosis through a daily 30min team Webex "turn your mic and camera on, and just chat or work silently or whatever ends up happening". Have you tried that? I haven't yet had the chance to mentor a new starter in remote mode, but from my own experiences and on general principles I would personally be trying a "leave my Webex room open all day and have a few of us working in there" approach. Of course, even better would presumably be to actively note what questions get asked during that time, and to update documentation accordingly.