The Pi Zero made it's debut in 2015, and it shares a 32bit processor with it's big brother from 2012. It's nearly antique at this point. As far as I am aware, the processor is no longer supported by Debian, and since Raspberry Pi OS is based on Debian you will likely see the end of OS updates very soon. (You are obviously free to install whatever compatible OS is available, but do realize Debian/RPiOS is what most of them are based on)
But... if you know what kind of project you are doing, know that it doesn't take a lot of processing power, and it won't be connected to the internet, go for it. I have one that runs a little samba server so I can quickly throw temp files on the network and pull them into other devices.
The Zero W has an official obsolescence statement that it will remain in production until 2030.