Disposable liner help!!!!

So we will use cloth when baby gets here, we have around 40 different types of nappies to try but I’m confused with the liners.

We’ve had lots of disposable liners given us as parts of the sets we’ve brought (totsbots, bambino Mio and little lamb) I would like to use them rather than throw them but non are flushable. In fact they all say pop in a nappy bag and bin. Now I’m confused this journey has been about reducing waste and so the thought of bagging these doesn’t sit well! What do you guys do? Or should I try and sell them/ give them away and buy reuseable?