Change your oil and filter in accordance with the schedule recommended in your owner’s manual despit what anyone else says.
Engine oil deteriorates from three basic causes. (1) the oil becomes contaminated by particulates from the parts it’s lubricating. Not all of these are filtered out. (2) oil becomes diluted by and contaminated by “blowby”. Blowby is gasses and chemicals being blown past the pistons rings during combustion. Some of this occurs in all engines. (3) oil suffers from “shear” and from heat damage. Visit www.carbibles.com for these descriptions.
All oil suffers from 1&2. Synthetic suffers less from 3.
If you want your engine to last, change your oil regularly. If you’d prefer that your oil last longer at the risk of your engine not lasting as long, go to extended schedules. The choice is yours.
In summary, are you switching because you want your engine to last longer or because you want to do fewer oil changes?