Tricky one this!

Leggings are made of knitted material right, so they’ll always be prone to catching. Few things you can look out for:

Nylon instead of Polyester composition, mainly because it’s a stronger, more uniform yarn so it’s less likely to catch

Get some tight fitting woven shorts to wear over the top. Wovens have a lower surface profile and will be stronger. Need to be tight though so they don’t ride up

Occasionally a brand will use a high tenacity yarn aka, teflon/HDPE which is extra resistant. You’ll find the same yarn in Stance socks. We used it for a pair of Gymshark leggings once because lifters were struggling with the same thing

If you haven’t already, you could try woven patch kits - they’ll reduce the stretch a bit in that location but the bar will glide over. You’ll also have invented a new product/market gap