I'm quite glad I found this information, and I appreciate everyone for sharing their experiences! I had for the most part trusted, after viewing a particular
YouTube video, that that Club3D adapter was the correct one to use; however, there didn't seem to be any other commenters confirming this. And, on most every other avenue exhausted, I only ever came across inconclusive results that had followed rough experimentation, or alleged success stories that weren't followed by any testimonials. Others involved Macs I wasn't even planning on using (such as those that contain no USB-A ports whatsoever).
Now, however, I realize that the information in this thread — regarding the Club3D adapter and its apparently proper functionality — matches up to that from the few seemingly promising 'tutorials' and/or answers I've found elsewhere. (Part of what had also originally confused me was whether or not I could forgo the official Dual-link-DVI to Mini-DP adapter and simply use a 3rd-party solution that takes DL-DVI straight to USB-C; some appeared to suggest that using the official adapter was fundamental to adapting the display for use on modern Macs, while others made no mention of it. Therefore, seeing it confirmed by more users,
here — that I
can in fact use the latter solution — was promising.)
With all of that said, I am battling an issue that is entirely unrelated to adapting this display for use on modern Macs, and I am wondering if anyone else has experienced the same; the power adapter accompanying my new-to-me 30" ACD emits a ridiculously irritating whining noise, when the display is asleep. While using it on a period Mac Pro, I noticed that said noise would disappear when I plugged the integrated FW400 cable into the Mac. However, since a modern Mac does not have FW400 — plus, it would take ~$80 in adapters, to take FW400 to USB-C — I am a bit stuck here. I really want to eventually use this display with a modern Mac, but I am not sure what to do about this coil whine. I
could spend $80 adapting FW400 to USB-C, but that would be quite a silly reason to allow a good port to be occupied. Also, for that money, I could probably replace the adapter altogether... assuming a replacement adapter doesn't make a similar noise. Thoughts on this?