in "Choose seed type" page choosing SegWit is better as your transaction fees will be less than the other option plus some other benefits, but it will create a new address format (new meaning 3 year old) called Bech32 (address starts with bc1) this format may not be accepted by some services so if you wanted to withdraw bitcoin from those to this wallet you wouldn't be able to. i would argue that you shouldn't be using a service that hasn't upgraded their system after 3 years but if you had no other choice you should select the other option called "Legacy" which creates Base58 addresses (they start with 1) and they are accepted everywhere but your transaction fees will be higher.