Some wallets give wrong fee estimation. So, make sure you choose one that lets you customize your fees and check the mempool status before setting your fee rate.
I've been using Electrum on Android for years and didn't face any problem with it except the lack of some features such as coin-control and signing/verifying messages.
You are not getting it completely right. If it is electrum on computer, definitely you are right, you can edit the fee by also typing it, you can even edit the fee to be 1 Satoshi/byte.
You can set the fee rate to 1sat/b on the mobile version to by tapping the fee estimation method and selecting "Static".