Sure (just currently ), if jour Librem 5 was not turned off overnight (for 8+ hours).
If battery capacity less than 10% this might/should be expected (but my opinion is not the expert one and probably not even the relevant one here, @librem5, please keep us informed).
Please try this one first:
This self regulating of stopping charging (red LED light off) I’m finding as just another Librem 5 great feature (only phone with such capability, if this term as technical correct). Thanks for this to all involved! Thanks @dos!