I'm on freewallet and have an imported wallet, with some address (seems) paired with a segwit addresses (bc1...).
I tried to import a bc1 in electrum and it imported the oldish address.
If you are using Freewallet, it is a custodial wallet. Just know that tracking your address on custodial wallet may be impossible because it is not nor key as you do not even has it, it is also not your address, the addresses belongs to Freewallet, and all you own is just a representation of the funds you have with Freewallet, not on blockchain, free wallet has the Bitcoin on blockchain, not you.
If you are using a noncustododial wallet, follow what hosseinimr93 commented.