Absolutely. Thats 2 - 3 hours. Did you think teaching was a 9:00 to 3:00 job???
Besides, there are a lot of ways to deal with this; it depends on the nature of the assignment. Sometimes, for example, you can spend 5 minutes at the beginning of class having them trade papers and go over the answers as a group, and mark each other’s papers. Check off who did and didn’t do the assignment (no need to compute a percent on each, just that the effort was put in). Let them trade the papers back so they can see how they did and learn from their errors.
Sometimes an assignment is to see if they can do on their own something you’ve done with them in class; it’s a check on yourself as a teacher as much as on the student. If most of the class couldn’t do the homework, it may be a clue that you need to spend more time on the material. Or that you didn’t explain it well.
For me, if it was a serious assignment, one that required some thought, I always read every one and made a comment on what was good or what needed improvement.
I often used to carry a large quantity of work home, and would be doing schoolwork from after supper until bedtime. Also I had one “free” period during the day that I used for that purpose. Sometimes, just to save myself lugging the weight, I would stay late and do some of that work before going home. I taught English, journalism and history. It was a LOT of material to read.
I had five classes; usually one or two were somewhat advanced, either my journalism or college prep class, the others were “general” students who were probably not intending to go on to college but who needed to be literate anyway. When my 9th grade college prep students were done, they knew the difference between an iamb and a dactyl, a sonnet and a haiku. Most of them didn’t know all of the comma rules, but some did, and they all knew the rules existed.
Teachers who think they are done with work when they leave the building for the day are the ones who give ammunition to the ignorant among the taxpayers who think teachers are overpaid. The real teachers are underpaid, but are working for more than money.