There are Legacy and Native Segwit "accounts"
Native Segwit are the bc1addresses.
This has confused me before when setting it up
Can I switch it back to native?
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They have instructions on their website about how to do that.
https://help.blockstream.com/hc/en-us/articles/4406838277401-How-do-I-create-a-Native-SegWit-account-