The ThinkPad T450 was my absolute favorite laptop recommendation a few years ago, but it's important to realize that it's around 8 years old and does not officially support Windows 11. Windows 10 reaches end-of-support in the fall of 2025, and although Windows 10 will continue to run beyond that date, in theory you may be exposed to some increased security risk. It's important to do your research on this model first before making a purchase. Also, you can install a non-Windows operating system on this laptop that will be more current, such as Linux.