Even I have the same issue on my new nothing phone2. Touch is not responsive sometimes at some points randomly. I am seeing this issue from the Day 1. So, this is not the issue with tampered glass. I see this issue before and after applying the tampered glass. I thought only am seeing this issue. Glad that someone raised this issue already.
I hope this shouldn’t be a hardware issue and I wish Nothing should roll out some software update should fix this.
Thanks.