C3 42 or 27" with RTX 4070ti

Hello, Currently my GPU is a RTX 4070 ti I bought LG C3 42 and 27" MSI to compare them. My GPU is RTX 4070 ti. And I still can't decide which display I should keep. Please advice me. What I saw:

-Cant see much difference between 4k and 1440 on LG C3 42 even with glassess. -But I can see that 27" display is very sharp, I would say even somehow sharper than 4k 42" display? I know it's not possible because they have almost same PPI but it's just my impression. -I have a slight visual impairment. Using 27" display I don't need to wear glasses and the image is very sharp. But using 42" display I have to play games with glasses because tv is about 1,1 metr away from me and I see slightly blurred subtitles, characters' dialogues. It's annoying. - on the other hand I love cinematic experience that 42" gives. I have the impression that due to the size of the screen I can see details very clearly, I was especially impressed by the game "doom". the image wasn't as sharp as on a 27" monitor, but due to the size of the screen I could clearly see all the details, such as the rising smoke from the overheated weapon.

TLDR: 27" is much sharper than 42 with my eyesight, because on 42 I can see blurred subtitles. It's because I have to play a bit more far away. But 42" gives a really cinematic, detailed experience.