I had some nice road trips, my latest experience was a 5-day trip, I moved from AB to ON, it was super fun and I loved it. Not much off-road, but there were some tricky roads in Ontario with only 1 lane in one direction, and hills. Thankfully, nobody needs paper maps anymore, and if you're smart, you won't be doing this in winter (especially in Canada!), but some things I did and I recommend are:
1. get your vehicle checked, even if you don't have any complaints. and make sure you have a spare tire, maybe even some gas stored in your trunk. I saw ppl with electric cars that pack generators for long trips + gas for them lol - sounds silly, but it's better than being left with no fuel in the middle of nowhere.
2. whatever can happen - happens. just in case, get more water and snacks that you really need, a medical kit, more clothes that you might need, and most of all - cash.
3. better safe than sorry. get a dash camera, do not stop for strangers in the middle of the night, (or better - do not travel in the night at all!).
4. If you plan visiting "middle-of-nowheres", check cell coverage maps like nPerf. If you see that your carrier won't have signal on your route, get a travel eSIM that can connect to those who have towers nearby. I like Nomad,
Ohayu, and Mobimatter for that, it's just very impressive how 1-3 GB of data can be the difference between being safe and, well, not so much.