Need a MoCA PoE filter?

Hi all, thank you in advance for your help! I have some questions about the need to address any possible interference on my cable line.

I have Xfinity 2100/300 MB service with a Netgear CM3000 modem. The modem signals/error levels are good, but I do experience some T3 errors, not a lot, so periodically and I inspect connectors, cables etc. looking for any issues. I have no splitters, the single incoming cable runs from the outside box directly to my modem.

Should I add a MoCA PoE filter on my incoming cable line, just before the cable modem? My reason would be just if it eliminates some ingress/interference from outside - I am in a rowhouse so houses are close. Comcast does recommend at least this one, which looks good:

https://www.amazon.com/dp/B08HJ4F4D4?ref=ppx_yo2ov_dt_b_fed_asin_title 

I don't think there is one at my Comcast box. I only have one cable line coming in, it goes right to the modem; so maybe it's not needed? There are no splitters in the house.

Thoughts?