I don’t care what appliances or brand people get. In most all cases comes with some preventative maintenance care. refrigerator’s have to occasionally clean the cooling system or it will over heat, stop cooling, and die miserable death ☠️ Eventually and most likely sooner than later.
Ask yourself?? When was last time I pulled it out, cleaned behind it, took back cardboard cover off, vacuumed and blew cooling coils and fan out? If I had refrigerator that’s stopped cooling and I haven’t done it in awhile (years) or never blew the dust/ lint/animals hair out of the cooling system. I would do that first before I called repair guy.
Also frost free don’t rally mean it get all frost from inside(under the covers where it controls temperature), Ice maker leaks and flap door hang ups may not get defrost. Which will cause cooling problem or lack of cooling. Sometimes manual defrost required. Now if I done all that and still don’t cool then must be system failure somewhere. Now would be time to call repairman.