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> They haven't even adopted bech32

What? They’ve been supporting segwit addresses for years

You can do a Segwit transaction with an “old” Pay-to-Script-Hash (P2SH) transaction. That is an address that starts with "3".

You only get the transaction size discount with “native” segwit transactions that are BECH32.

https://www.ledger.com/academy/difference-between-segwit-and...

I know and they support both for a while now. Why would they not support it if it saves fees?

I believe, for compatibility reasons

Afaik they support the backwards-compatible parts, but nothing new. I'm talking specifically about "Receive to P2WPKH/P2WSH" in this chart:

https://en.bitcoin.it/wiki/Bech32_adoption#Exchanges

Well that chart is plainly wrong or outdated. This is a random coinbase transaction from 2021 and it pays out to all kinds of addresses including P2WPKH/P2WSH.

https://blockstream.info/tx/62c16aeb80944ed8e6d4c896dbd88661...

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