My Maytage dryer model # MDE5806AYW is not drying like it has been in the past. I have checked the vent duct and it is clean, although big pieces of lint comes out of the vent when clothes are drying. Could lint be built up somewhere else in the dryer? If so how do you check around the drum? Come in from the back, top, etc? Manual also mentions a fuse. Do you know where the fuse is located? Appreciate any help anyone can provide.

Many Dryers have little thermal devices that open when a level of heat is reached, One is probably open.
If capable to work safely with Electricity, I would remove back, turn dryer to heat, then measure across the 2 terminals of all thermals on ductwork, they should read Zero, if one is open, it will read voltage and be the bad device.