I had a look at 14.6.1 and it doesn't have any further security updates. Those seem to have stopped at 14.4. so, given the only reason I went to Mojave was to keep up with security (as much as possible) and retain my 32 bit apps, I don't have a compelling reason to pass 14.4
In other threads I read about people having problems with 14.6 and I figure, if it isn't making things safer, why would I opt for gaining unwanted issues? So, it comes back to the question: "Is it better to go straight to 14.4 or do it an update at a time?"