A lot of people in this thread and others have recommended devs to try out screen readers to get familiar with developing for them, and I added to my mental checklist "look up screen readers and try to find a good one to try out eventually", which really I'm not sure I'd ever get around to, and even if I did, I'd probably get distracted from choice paralysis because I wasn't sure which screen reader is worth trying.

Immediately after reading your post, I pressed a key combo and started playing with it. I would not have guessed that getting started was literally just a key combo away. Thanks.