@_Leafy_Sophie_ Hey Sophie this does look like a sign of overwatering. (Check for rootrot) Sunlight should help , or mix some cocopeat in the pot to absorb the moisture. Let us know if this helps.
Well story time with me! I bought a vatiegated ZZ plant and the variegation is very minimal so I've decided to get all of the leaves that are variegated and I planted them to their own pot!
#zzplant#planttwitter#plants#plantidentification