P7P screen has splotches underneath for the second time after a full screen replacement. How to get a new device.

3 months ago my phone had splotches of glue or something coming through underneath the screen and Google had me fix it at an Asrurion and it was good for the last couple months but today I noticed there are now 6 or 7 of the same exact kind of under the screen issues. Wouldn't this be a problem the internal housing underneath the screen bleeding through somehow? I don't want to get this fixed again only for it too happen again and then no longer have it in warranty. My phone is needed for my job and I cannot replace it with long downtime. Any options for warranty trades? At this point I will just take the Pixel 7. Tired of all the hardware issues. Is there a defective unit policy or something?