I agree with those who’ve said there’s not much you can do other than vacuum frequently. I supplement with a roller tape thingy, we buy them in bulk at Costco. I bought a seat cover at Duluth Trading, it’s nice but our dog kept getting tangled up in it. He’s a 90 lb Boxer/Shepherd mix and determined to sit in the wife’s lap. He kept slipping off the seat into the floorboard so I took the cover out and deployed the fold flat. We put blankets down on but it wrinkles up when he decides to go through his routine of walking a circle 3 times and then scratching/bunching the bedding materials up before he lays down.
Hot tip - I also carry a spray bottle of glass cleaner and cloth to clean the snotty nose prints and slobber off the windows...and sometimes off me too !!