[Soap box enabled] Every lead is always coiled after a gig. Every lead. Always.
A coiled lead takes up less space, doesn't knot, doesn't become entangled with other leads.
With a little practice, any lead (yes, including 10m ones) can be successfully coiled in about the same time as it takes to stuff a rat's nest into a bag.
I only let bandmates touch my leads once I know that they know how to coil them properly. If they don't know how, then I show them. [/Soap box]
If you want your cables bag to last a long time, don't waste your time with normal luggage or nylon sports bags, buy a tool bag.
https://www.amazon.co.uk/s?k=tool+bag+large&ref=nb_sb_noss_1
Better still, search for Stanley FatMax 1-93-935 Waterproof Toolbox 28inch
That will give you cable storage that can also be used as a step-up when you need to route cables or lighting (or whatever) near the ceiling of the venue, can be used to put a combo or lights on to get them off the ground at gigs, and can keep vulnerable pedals safe when travelling to/from gigs.