Incidental Inappropriate Content in Public?

4-5 days ago, while riding public transportation, I was in a telegram channel that was normally fine, no extreme content, and up came a gore video that I ended up watching 5-10 seconds of (and fully regretting)... But I partly needed that time to process what was going on, and to know if that was really happening....

Just this morning, I was curious after hearing about the Zion Williamson scandal and searched for information on one of the women involved in his issues... And there I am on the subway again, and I got just this feed that is all Instagram-tier butt-shots & thong dances...

Again, I don't really linger too long, but I am curious as to what the overall gallery looks like and was partly amazed that there was no SFW material. But, again, this is on Instagram, so while not exactly SFW, it's still not too crazy...

My question:

Is it terrible to view this kind of material in a public place if you are at least holding it close to your face or otherwise seeking some amount of privacy?

Am I the asshole for lingering on this material? I was conscious of the people around me and at that moment I was certain nobody could really be looking in on what I was watching unless they were literally stealthily looking over with just their eyeballs. The train wasn't overly crowded, after all.