Yeah, I’m at 1080p and have usually not had any issue with the games I’ve wanted to play. From Might and Magic Book One (1986) to Monster Hunter World/Iceborne. But I’m very selective with the games I play—usually do not tolerate bugs or unnecessarily resource intensive ones where it would’ve needed a lot less for the same thing with more care taken.
“You’re emulating retro games wrong” is not the best title. For example, Dosbox Staging enabled the CRT filter by default at some point; there is no graphical interface, you need to open a file and switch a cake to revert it. Moreover, there was no indication that the black lines were not a bug but were a filter.
Playing DOS games on operating systems which do not support DOS programs natively is still emulation. However, the number of DOS games which utilised CRT effects are much fewer such that I primarily played DOS games in 2022–23 and none of them made use of CRT. However, the black lines were enabled till I figured it out (because there were no support requests surprisingly, and the default filter being changed was mentioned in an unrelated request regarding bad performance issues—where it was made known and the recommendation was made to change the setting).
The (slight) problem is with the title itself. It is not a big issue for me, but the statement made in the title is the problem because it is only in a comment that it was mentioned not all old games use CRT effects. Clickbait might not be the best word for describing the situation, but the title will be annoying for many who play old games which were not designed for CRT effects. But then, it is not a big problem and I more or less ignored it (to be clear, for being wrong as far as the title itself goes) before seeing this thread. It would’ve been better to state directly instead that many old console games and games of the adventure genre, among others, were designed with these filters in mind and for practical reasons (like actually having the graphics show what they were meant to show) because like in your other comment that specific scene does not show the background at all without the effect, and it will be a fairly common occurrence for games which were designed to use the CRT effect.