Per https://wiki.openstreetmap.org/wiki/Tag:highway=motorway_junction highway=motorway_junction is really the tag for a motorway exit, it's the node along the motorway where you can take an exit, so it's no suitable for an interchange.

The way at https://www.openstreetmap.org/way/1292847049/history is still probably the best way to mark the interchange, you could do a relation which includes all the road segments, but this area way also does the job in my opinion.

So I think it's best that all the interchange tags are moved to the way and we drop highway=motorway_junction, and not on this lone node in the middle. The way does a better job at showing the extent of the interchange and all the roads which form it, if it's just tagged as a node we don't have an idea of scale of the whole interchange site.

We don't really have a suitable tag for an interchange currently.