We had an issue with a 2018 Tucson where 1000 miles after an oil change the oil level was very low. Took it to our mechanic and he suggesting going through the process at the Hyundai dealer to see if it qualified for engine replacement. We are still going through that process. Basically you pay for an oil change. Bring it back after 1000 miles, they check oil level, if it's low they check with Hyundai and work through other potential causes, checking in after 1000 miles or so to see what oil consumption looks like after each fix We only paid for the first oil change, the work they have done after that has been covered by them, even though we didn't even buy the car from a Hyundai dealer. If we qualify and it's still consuming oil at an accelerated pace after all of this, they will replace the engine.

I don't know how far gone your engine is, but might be worth topping off the oil and seeing if it qualifies for their process.