I tell the GPS where I’m going (the exact route), and it merely provides a moving map!
I use CoPilot on my phone and iPad. It has an easy method of adding “route through here” to force it the precise way you want to go.
I just study my destination and memorize the last mile or so. I run through road/junction for the route, and have a quick look for easy alternates should I get diverted. That really helped one night when the M1 was closed and was being diverted somewhere around Milton Keynes. Because I researched the route previously, I used my own alternate which made things easier.