Creasing in concealers under the eye usually happens because the formula is too liquid or your eyelids just move too much - and if you're staring at a monitor all day, you've definitely got a worse problem with it. What helps: A setting spray right after the concealer, before you apply foundation or powder. That really locks the pigments in differently than just slapping powder on top. I used to forget that all the time and then stare at my eyeball until everything was smudged 😅
For the product itself, I'd go for a creamier formula instead of liquid ones - they're thicker and just hold up better when you blink. A lot of people swear by stick concealers because they create minimal friction under the eye. Another trick: Don't apply too much. Sounds silly, but the thicker the layer, the more the whole thing folds up when your eyelids move. With two thin layers plus setting spray you've got a better shot than with one thick glob on top.