Well, my collection of Polycarbonate iMacs do have Firewire 400 sockets: all the way through my 2xG5, 1xIntel 32-bit to my 2xIntel 64-bit, and, as such [Ding An Sich], they rock for connexions [ that's "connections" for non-Scots] to Firewire, and I use my collection of Firewire peripherals [Alte Scheiße] with them all the time, and was just enquiring [that's "inquiring" for American speakers] about connectivity to a 2018 Mac Mini because banging my head against the wall during lockdown has begun to lose its appeal.
"Wow that is old tech....."
Really? Do you want to come over to Bulgaria (where I bide) and have a go with my 1981 BBC Model B computer, all in 100% working order, 32 Kb RAM, and a cassette interface for saving programs.
Well: all a bit difficult at the moment, what with travel restrictions. But we could have fun seeing who is the bigger poser: you or me.
"You may be better with a usb capture device like the elgato.
This has a Scart connector with component also."
Probably, but:
1. I am Scots and mean.
2. I have a "thing" about my Firewire video converter box.