Instead of having to recycle the old laptop powersupplies I managed to find a way to use them with USB-C devices via an adapter.
You can find the adapters via the affiliate links below
Thinkpad powerbrick to USB-C https://s.click.aliexpress.com/e/_eKQrDy
Thinkpad Square jack to Barrel jack https://s.click.aliexpress.com/e/_eLo0Om
Thinkpad Barrel jack to Square jack https://s.click.aliexpress.com/e/_eNv2t4