user1446: In regards to P2SH-P2WSH transactions, are Txout-script values identical between transactions?  Is it reasonable to expect a business or vendor that accepts bitcoin to be using the same redeemScript for all transactions and use the same Txout-script value? Would users benefit from this value rotating?

user5406: It is considered a bad practice to reuse addresses (which are representative of specific output scripts). Reused addresses reveal that a recipient in otherwise unrelated transactions is the same entity. Additionally, it is considered good practice to provide a fresh address for each payment attempt, as it allows the addresses to take the character of invoices and uniquely identify the context of the payment executed by the transaction output.
In practice, addresses unfortunately frequently get reused. In a blog post from February 2022, BitMEX Research details that at the time of writing about 50% of transaction outputs were being sent to previously used addresses. The blog post goes into additional statistics surrounding the topic.

1446: <p>In regards to P2SH-P2WSH transactions, are Txout-script values identical between transactions?  Is it reasonable to expect a business or vendor that accepts bitcoin to be using the same redeemScript for all transactions and use the same Txout-script value? Would users benefit from this value rotating?</p>
 5406: <p>It is considered a bad practice to reuse addresses (which are representative of specific output scripts). Reused addresses reveal that a recipient in otherwise unrelated transactions is the same entity. Additionally, it is considered good practice to provide a fresh address for each payment attempt, as it allows the addresses to take the character of invoices and uniquely identify the context of the payment executed by the transaction output.</p>
<p>In practice, addresses unfortunately frequently get reused. In a <a href="https://blog.bitmex.com/bitcoin-address-re-use-statistics/" rel="nofollow noreferrer">blog post</a> from February 2022, BitMEX Research details that at the time of writing about 50% of transaction outputs were being sent to previously used addresses. The blog post goes into additional statistics surrounding the topic.</p>
