One of the most common questions as a trainer I get is- I haven't worked out in a long time... how many days should I workout?
This answer could be different for many but for most people I recommend 2-3 days a week with a day off in between to establish a routine and build a habit that they can sustain.
A lot of times we start a routine and we are uberly duberly excited and go every single day but then one day we have a work meeting that runs late or a kid gets since or we oversleep then we fall off but if you start small and build, you can make changes and shoot for that minimum 2-3 days. If you can shoot for getting a movement goal like a step count each day, that will do wonders. But keep it simple and start slow with 2-3 workouts and get in a habit, then build from there.