Theoretically, if your modifications are not the cause of the problem, the warranty should be honored.
In my opinion, it depends on your dealer.
If you have already entrusted your car to him and he has made a lot of money with you he will probably be more willing to honor the warranty than if...
I guess you look here with no success ?
https://www.hondapartsnow.com/genuine/honda~case~assy~oil~seal~11300-59b-000.html
https://www.hondacarpartsdirect.com/oem-parts/honda-2016-2020-honda-case-assembly-oil-seal-1130059b000...
This one ?
https://www.walmart.com/ip/AUKEY-Dash-Cam-FHD-1080p-Car-Camera-Supercapacitor-170-Degree-6-Lane-Wide-Angle-Lens-Dashboard-Camera-Recorder-with-G-Sensor-WDR-and-Motion-Dection/426215887
Simple contraction of hot parts that cool. Nothing abnormal.
You must never have used a motorcycle, a gasoline lawnmower or a gasoline generator because you would have noticed the same phenomenon.
Not reassured? consult a mechanic to have his opinion.
It's their job.
It is quite strange that the previous owner left it as it was. It's so apparent.
Unless it's a wrecked car and the adjustment for the front will cause a misfit on one side?
I had the same problem and didn't bother going to the dealer.
I had the condenser replaced at a small A/C shop. $400 cnd
Since then, I have installed a grill in front of the condenser. An idea found here in the forum.
Gril find in a good hardware store ; job take 10 minutes