Why is this e-waste when compared to old Mac laptops - many of which are in perfect working order, save Apple arbitrarily stopping OS updates because they were too lazy to maintain or update device drivers. Somehow MS requiring TPM2 for Windows 11 was the end of humanity as we know it, but a Mac with a T2 chip is heralded as progress.
If anything many of these PCs will enjoy a second life off eBay in someone's home-lab running Linux. One of the most popular "servers" in the home-lab community are those little Lenovo Thinkstations you see in hospitals.
Edit: if you're a sysadmin at a university, aren't you replacing machines every 3-5 years anyway?