Look up canine enrichment. Instead of eating everything out of a bowl move her feeding to snuffle mats, frozen kongs, puzzle toys, etc. Even just rolling up a few pieces of kibble in a towel and twisting it up can last 5-10 minutes. As the weather warms up I like the Pupsicle and the optional mold they sell instead of buying their refills. You can freeze mostly water with a little bit of something else and get a long lasting activity. It's the only instagram ad I've ever bought because it's a product category I know a lot about and it's just as good as it seemed.
Just like you get tired after a long day in front of a laptop or driving 6 hours, mental stimulation is a good way to occupy her in the moment as well as help her rest more.