If it’s free gift then yes, Linux will work but with a few compromises. Mainly driver support for Apple’s proprietary hardware can be patchy out of the box and need manually fixing. Mainly peripherals like cameras (which may not work at all) and thunderbolt connectors (thunderbolt is supported but can need problem solving and may work better with different distros by default). The WiFi drivers are the classic issue - fixable but obviously painful to do offline.
But if you’re paying beware those limitations.
The good thing is it’s a Core i5 so you can use any AMD64 distribution and software (rather than the ARM distros needed for the proprietary apple chips; although on a quick search it seems those chips are now well supported by Linux distros).
Best approach may be to find a video/tutorial for your specific machine, and pick a distro they use. I imagine that’d be an Ubuntu derivative just due to shear popularity. But if you’re then feeling adventurous you could try and get your preferred distro set up - just may need to know how to fix drivers.
I personally wouldn’t stick with Mac OS - it’s notorious for slowing down older systems as the focus is on the new. A 10 year old laptop will likely run better with a well set up Linux distro.