Nah, with a vcr get hdmi out, either upscale or a fancy vcr with hdmi, plug it into the capture card. Then just use the capture card as a media source in obs and record.
The big pain is having to be around for the end of ths video (if you dont want to have to trim the video file that is)
UGREEN 4K HDMI Video Capture Card HDMI to USB 2.0 Game Capture Card HDMI to USB C Audio Capture Adapter Full HD 1080P Capture Video Audio Recording for Editing Video, Games, Streaming, Teaching https://a.co/d/6jgpWMe
Im currently using OBS and this for a friend. May not be the best way, but it works
https://github.com/ChrisTitusTech/winutil