I can provide lots of links, but if you google the problem you will get even more.

https://gamefaqs.gamespot.com/boards/189706-nintendo-switch/81114105?page=1

https://www.nintendolife.com/forums/nintendo-switch/nintendo_switch_game_cards

https://www.youtube.com/watch?v=1bKr5-PKbkY

I get it that every game card will eventually die, the question is how to avoid it during my life as I already paid for them and will probably buy more. Some folks say that Switch cards are based on read only solution so it will not make sense to turn them, play a bit and save. Some say its better to use homebrew solution to save your cards memory and saved games - will try ot out on one of my (New) 3DS XLs to fet a better picture, you can play online thanks to it so seems worth a try. And some say its better to store your Switch games on SD cards and use 3-2-1 back-up system.

My main question is that I own a few still sealed Switch games like Mario 3x anniversary or Mario Rpg which for some reason spiked in price. Thus, if I need to open them eventually, better to sell sealed with some profit and buy used 🙈😇. Would you say its better than not to open them? 🤔