the WMR is only for 2021. did you check to see if the IRS has a transcript of your 2021 return? here's a summary of a thread posted on this forum.
one op reported they filed their '19 return timely and still had not received their refund more than 2 years later. they say they contacted their congressperson who contacted the tax advocate in their state. the advocate followed through and according to what the op was told the return was sitting on an agent's desk awaiting some additional info. the op says they never got the request. anyway once the op provided the requested info the return was processed and they received the refund. so i would suggest that if you filed by the extended due date for the '19 return, contact a congressperson in your state. it can't hurt.
if you mailed your return in a timely manner it's possible the IRS never got it but by proceeding as above you'll find out. so if they don't have it I would refile.
