Some SD cards are unreliable because they are removable storage and some vendors therefore think they can get away with sketchy quality. As soon as you solder on the storage (aka eMMC), reliability requirements shoot up through the roof and vendors tend to do a good job of ensuring quality and reliability.
However my suggestion is to just use an external SSD which are dirt cheap compared to SD cards (128GB for 26€).
Some SD cards are unreliable because they are removable storage and some vendors therefore think they can get away with sketchy quality. As soon as you solder on the storage (aka eMMC), reliability requirements shoot up through the roof and vendors tend to do a good job of ensuring quality and reliability.
However my suggestion is to just use an external SSD which are dirt cheap compared to SD cards (128GB for 26€).