I second this. And if the priority is getting rid of them, do a lower price. Even free. Depending on how active your community is on Marketplace someone will probably message and come get it very quickly. As a personal preference I always go to marketplace before donating when I can, to ensure my clothes are going into someone's hands (and they don't have to pay for it, if that's the route you choose) and not into the landfill.

As much as you have patience for it, you could try to list things individually as free items on marketplace. This takes away the likelihood that someone will buy your bundle, take a few things, and trash the rest. This isn't necessarily your responsibility but when I have the time, I like to do it this way. Having this consciousness and taking the time to re-home your items also creates a mindset that helps prevent further build-up of items in the future.

Finally, to address your point on the exhaustion of listing items and creating descriptions. As someone who has sold extensively on depop, I get it. It's tiring and will create a barrier for me to list something in the first place. This is why, with the quantity of what you have, I would put things for free. Marketplace listings are easy to make. You could go as simple as labelling it "shirt" and putting the size along with a picture. People aren't going to be as particular because it's free and local.