There are a lot of people here that seem to be taking the view of "Oh no, it's a toxic to do this. You shouldn't work on the weekend. Why are you doing this just to get attention for your GitHub profile, or what your managers see?"
However, one concept that comes up in research like the book Atomic Habits, is that there's a much better reason to commit code frequently - quantity leads to quality. There's a famous story from the book Art & Fear about a university pottery class. The lecturer decided to grade half the class on the number of pots they produced, and the other half on the quality of a single pot. It turned out that the half of the class focused on quantity ended up producing higher quality pots over time. This is because the group that only had to produce one pot spent the whole time overthinking it rather than actually practicing and mastering their craft.
I think this is a much better reason to be committing code frequently and working on your skills every day. We're in an environment where it's a challenging hiring market, so it's important to set yourself apart from others within the industry. Some people have turned their nose up against "colouring in" their GitHub profile, but there are a number of psychological effects like "don't break the chain" that can be helpful in consistently putting in the effort.
Some commenters have mentioned tasks that simply take a long time, but I don't think the author of the original blog post was arguing against that. Rather, he's advocating that you should be continuously working on and improving your abilities.