Got inspired by this post on Imgur:
https://imgur.com/gallery/dVGRu

I'm visually impaired and having a hard time with some games when using the Switch in handheld mode.

Use with 180 mm X 120 mm (A5) Flat PVC Magnifier Sheets, which you can find on Amazon or AliExpress, like this one: https://www.aliexpress.com/item/New-Arrival-180X120mm-Convinient-A5-Flat-PVC-Magnifier-Sheet-X3-Book-Page-Magnification-Magnifying-Reading-Glass/32809533087.html

Print 2 of the models, place on each side of the Switch and insert the magnifier sheet.

It allows me to play Zelda on the road, otherwise it's a pain to play as accessibility settings on the Switch for visually impaired folks is pretty much nonexistent.

It's not perfect, the magnified image quality is not that great but it's decent enough and I hope it can help others who also struggle with this.

Perhaps someone could improve on the concept and get better results.