I doubt it, my phone runs LineageOS and strongly avoid closed source apps, browser is plain ol’ default Chrome, computers are Linux, router is OpenWRT, IoT is on its own VLAN. I guess my ISP, CenturyLink could be doing some shady things. But otherwise, I doubt it. My server would be a much more interesting target, and is public facing obviously since I’m posting through it.
As for why no ad blocker, I use AdAway but it breaks some apps. I don’t use any apps that have ads so it’s limited to Chrome, which mostly gets used when opening links from Lemmy or IRC.