Condensation on a propagation cover shows that moisture is present inside. It does not tell you whether the rooting medium is at the right moisture level or whether the tray is becoming too warm.
Place the covered cuttings in conditions suitable for the plant and the method. A bright position is not an instruction to leave a closed tray in direct hot sun.
Open the view, not just the lid
Inspect leaves and stems for decay and remove fallen material as appropriate. Check the medium without disturbing every cutting. Follow the ventilation guidance for the method you are using.
If the cover is so crowded with leaves that you cannot inspect the cuttings, reconsider the arrangement. Keep labels visible and leave room to monitor what is happening at the surface.
Record any change you make to ventilation or position. A cutting that wilts after the cover is removed may need a more gradual transition, while one sitting in persistently wet material needs a different assessment. Read the plant and the tray together; droplets on plastic are only one part of the picture.
The RHS softwood-cutting guide calls for good light without scorching direct sun, removal of decaying material and gradually increased ventilation after rooting. Those checks tell you more than the amount of condensation on a cover.
Related reading: Taking Plant Cuttings in June: Methods and Aftercare.