In the year 2021 very few people need to transfer VHS tapes or DV tapes but it seems like the new M1 iMac with FCPX and OS X will work just fine with the Firewire DV converters and DV camcorders. I imagine the M1 Mac Mini will work just fine as well.
Get a Retrotink 5X, plug your analog cables into that and let it upscale with adaptive deinterlacing. Then capture its HDMI output with your favorite capture device that can handle 1080p/60fps. Waaaaaaaaaay better results than you could achieve capturing natively with firewire.
I made the video to demonstrate that the M1 chip and latest version of OS X can support Firewire devices. I also think the DV converters are hassle free, reliable and offer good image quality but they do not have the best image quality.