I have a few parametric projects I posed on my github:
https://github.com/profdc9/FreeCADParametricModels
One of them is called “Memorybox” and is a gift box I made that has parametrically definable dimensions, and the text embossed on it can be changed as well.
I just took a Core i5, 6 GB RAM laptop from 2011 and reinstalled Linux Mint and put in a 1 TB SSD. The difference between that and Ubuntu 23.10 and a 750 GB 5400 RPM drive was like night and day.