TLDR: Needing help with the Shark IZ163H Pet Plus Cordless Vacuum (picture attached)

Hey all! Does anyone know anything about vacuums? Particularly the Shark IZ163H Pet Plus Cordless Vacuum (picture attached)? I got it for Christmas 2023. I was absolutely in love with it because of its “no hair wrap” feature (my dog, also pictured but for attention, and I both shed like crazy). Or, I was until I realized that means the brush roll, although accessible by taking off the bottom plate, isn’t removable itself. This ultimately means the base of the vacuum gets absolutely filthy and there’s very little you can do to clean it. Even the hair has built up over time. Anyways, it was a flaw I looked past until the vacuum stopped working earlier this week. I’ve checked for clogs (there are none), and I’ve tried it on various surfaces and with the other attachments. It works fine if I’m using one of the attachments, but not with the base. I’m no vacuum expert but I’ve done what I can to research the issue. Based on what I’ve found, I’m thinking the brush roll is the initial issue?? Although there is hair tangled in the bottom, it doesn’t seem to be causing the problem. The brush roll is difficult to move manually, as in with my fingers, and Google says this might indicate the drive belt, motor, or switch is broken. I’m assuming either of the latter two breaking would mean the attachments didn’t work either, so I’m assuming it’s the drive belt. Google also ever so kindly informed me that the drive belt is replaceable, but I can’t find a drive belt for my model anywhere online, including the Shark website. I’m worried it’s a total loss, but the damn thing was $350 (!!!) and I feel like it should last longer than 2 1/2 years?? Besides the outrageous concept that such an expensive appliance costing a week’s worth of pay would break so quickly, I’d really like to not have to drop $150+ for a new one. And, no, I don’t think a warranty was purchased.

Apologies for the word vomit but I’m stressed! This is quite literally only my second post on here ever. As in, I made a post years ago and later deleted the account because I never used it. I’m only 26 so maybe this is a long time coming, but some random from NextDoor sent me here so I jumped through all the hoops to make another account. That should prove how desperate I am here.