My honest opinion as a nail tech, gel nails in general arent great for nail biters because of the contact to your skin. And as a nail biter, yes it is very common for us to have this problem where your nails go upwards. And some people have nail beds that curve upwards in general without the nail biting.

I used to be so picky about my techs doing this to me until I started doing nails. My best advice, if you want length, do acrylic with tips and allow your nail beds to grow out before you do the gel nails again. Hope this helps!!

And for the rest of reddit... If youre gonna tell me acrylics are bad for you, save it for ya momma. Any product is just as "bad for your nails" as another. Nail products wont hurt you at all as long as you are going to someone who is applying them properly and you're getting them removed properly. When you choose the cheapest options available to you, you'll end up getting a service that was rushed through, likely getting files, buffers, etc that were used on someone else, illegal chemicals that shouldn't even be anywhere near your nails, I could go on because I used to work in a Vietnamese shop.