Timing Chain Cover Leak | Quick Fix Clarification

My 2009 Tacoma 4.0 (1GR-FE Z) just rolled 130,000 miles. From what I have read it looks like the notorious timing chain cover leak. My symptoms are as follows:
I first noticed oil around my power steering pump. When park, I leak a small amount of oil (drips off of the jack point). Today I took off my skid plate to clean up the residue and get a better idea/confirmation of the leak. I observed that there was also lots of residue on the driver side of the engine bay as well, under the alternator, building up gunk on the AC compressor (on top of the bolts and hoses).

I plan to clean it up and use the "Permatex fix" I found on this thread. (https://www.tacomaworld.com/threads/timing-cover-leak-easy-fix.714515/)

This thread only showed using sealant on the passenger (PS pump) side, however I have read plenty of "timing chain cover leak diagnoses" with residue on the driver side.

I am looking to get clarification on if I need to seal both sides. Has anyone done both and could talk me through the process? My only other explanation for oil on both sides would be my serpentine belt and other moving parts flinging the oil to the rest of my engine bay.

***Update*** I'm officially in an internet diagnosis rabbit hole, would old PCV valves be creating extra pressure in my engine? Therefore making the leak worse...

 

If you have a pcv concern try this old school trick. Take the oil cap off and ziptie a rubber glove or plastic bag over the fill neck. Turn the engine on (let it idle) and see if the rubber glove is being sucked in slightly or getting blown out slightly. A healthy pcv system will suck it in slightly