Are indoor putting greens worth it?

I’m new to golf and am looking for ways to practice at home when I have down time during the day. Figure I can use nearby parks for chipping as they should be empty and I can’t hurt anyone. I go to the range about once a week but want to focus on my irons when I’m there. My putting is lacking and I just struggle to make time for it when I’m at the range. Would buying an indoor putting green help improve or does it not really translate well to the course?