

It isn’t done. It really is never done. Purely from a “keeping the lights on” mode, you still fix minor bugs, update dependencies, fix vulnerabilities and maybe even make small code changes. Outside of that, you are always implementing new features, fixing old features, or creating tests/automation. All of that takes a lot of work and requires manpower.
I’d wager even the 1% is the stereotypical “solution in search of a problem”. Seems to be a reoccurring theme as of late in the tech industry.