Started with opening the base plate cleaning after a quick diagnosis sewing

Face bottom to remove the bottom cover. 3 screws 2 long and 1 short

Side left panel cover open. Clean and Lubricate all moving parts

Back panel open. There's a single screw that holds the back panel that's hidden due to right side cover (2 screws holding cover)

Once back panel removed continue with cleaning the area under presser foot followed with lubrication. Also other moving parts above the presser foot blocked by the back panel.

Avoid lubricating near the belt on right side of sewing machine

Once all cleaning and lubrication are done, reassemble the machine. Thread both top and bobbin. There should be an improvement & less noise when zigzag stitching are selected on the sewing dial