Does my home network or my isp need an exorcism?

I have a Netgear CM1000v2 modem and a Netgear R7450 that has worked great for a long time now but in the past year, specifically while playing OSRS I am getting random packet loss just long enough for Discord and OSRS to drop for ~10 seconds. Not even long enough to fully disconnect me from OSRS, but definitely long enough to pause my connection and get me killed.

I have tried every bit of troubleshooting I can think of. I've monitored the drops with NetUptimeMonitor and WinMTR. Its very difficult to catch when it happens but I did catch it once with NetUptimeMonitor, ran it through chatGPT which pointed a finger at upstream latency so I contacted Comcast, who of course told me everything was fine, or it was my equipment. After some back and forth they sent out a tech. The tech tells me my signal levels are fine, replaced my Coax ends, and removed a splitter I had in my home.

After the issue continued to happen I reach out to comcast again, this time they gave me some BS shpeel about how since my plan is older I was in a way second class to other comcast customers and that upgrading to a gig and newer plan would fix the issue. Since I didnt seem to have another option and it did actually reduce my bill slightly with more speed I proceeded. To my surprise it seemed to actually fix the issue for a couple months, now it is happening again and I don't know what else to do besides start replacing my in home equipment which seems to be working just fine.