Last year my 2015 iMac died after a decade of service. Around the same time I acquired a new Mac mini. Unlike the iMac, the Mac mini doesn't have a built-in monitor. I needed to acquire a new one. Unfortunately even newer displays in my price range would be a quality-of-life step down from the iMac screen I was migrating away from. I opted to save money and reduce electronics waste by repurposing the still-intact iMac screen.
https://chromamine.com/2025/01/converting-an-old-imac-to-a-5k-display/