Private browsing

Hey guys it’s been 4 months since DDay and I haven’t found anything suspicious on my PA’s devices, he used to use his computer and discord for stuff and I got to see his usage history through bots that notified whenever he joined servers for it, nevertheless he saw me find it out so he knows where I looked.

I’ve been getting suspicious lately and was wondering if there perhaps truly is no way of knowing anymore, he doesn’t use Reddit nor telegram and didn’t use his phone for stuff and his social media history as always been just random tech and car stuff never anything else so this is out of the way as well and all I’ve been relying on lately has been his brave cookie and tracer blocker history and I was wondering if there was anyway to get hints about private browsing history?

Because if he’s lying to me I’m pretty sure what he’s using is this since that’s be the ultimate way of hiding stuff and it’s been eating up at me so if anyone has ever been in this situation and found a solution feel free to share 🤲

Thanks for reading and sorry if this comes off as a bit weird it’s just been eating up at me a bit I feel like something’s off and this is my only way of truly knowing if he’s relapsed or is just straight up lying to me still 😕😕