I don't use Sonala network regularly I only use it when I need it for some reason. I have to withdraw stablecoins from the exchanger from time to time, but I always use the network free com of the chain. The transaction speed of SOLANA network is very good and if you make a transaction from a personal wallet, the fee is very low, but the withdrawal fee from the exchangers to the SOL chain is relatively high, so this chain is not used regularly.
Most exchanges are charging 1 USD to withdraw from Solana
Could be SOL, USDT or USDC
I don't know exactly why they are charging more than other networks that have the same fees
Other day I made an withdraw from ETH network on Kraken and paid 0.60 USD
I made another one, USDC in SOL's netowork and paid 1 USD
A reasonable fee is something like 0.50 USD in my opinion