Looking at this image (from an aliexpress store linked by @maxim3D on a different thread as https://a.aliexpress.com/_mqFlbu9) :
it looks as though they have the slot, so in theory they’d be more likely to tear. Nonetheless, in a post on a different thread, @maxim3D reports they’re a lot more durable anyway than the official Bambulab socks. He didn’t indicate if he noted any particular failure pattern when they do fail, so maybe (?) they fail in a different place. In any case, he reports getting a lot more print hours on his aliexpress knock-off socks before failure than I am with the official Bambulab socks.
Source:
It’s not easy finding pictures on the area of interest, as most posted photos just show the front and not the bottom.