The Lidl peat free compost looks much like the local authority soil
improver.
Very coarse grained, and has the warning that you should use very strong
gloves when working with it.
This could suggest that it is from recycled plant material and so could have
'foreign objects' in it.
Don't know, but I don't recall seeing this kind of warning on other
composts.

Anyway, it does not retain water well and so needs either frequent watering
or some kind of deep tray under a pot to catch the water and let it be
absorbed over a period of time.

I had a pot of wilting sunflowers which have much improved with this
treatment - other two pots had 'normal' compost in them.

A pot with an outdoor cucumber was also not doing well.
Pot is now in a plastic tub and the cucumber has sprung back to life.

So be warned - possibly O.K. as a soil improver but questionable for use on
its own in large pots.

Cheers

Dave R