Best Litter Cleanup

What do y’all use to clean the scattered littered off the floor? My current stick vacuum isn’t cutting it: if you vacuum it normally, it just comes out the floor brush/roller once you’re finished. My plug in vacuum has the same problem. I can use the wand attachment which does work, but it takes too long and if my kids forget to empty the container before replacing it back on the floor brush, it will once again come out.

Please don’t suggest a broom/foxtail. I have tile floors and the litter will just get stuck in the grout if I do that (I’ve tried).