n Structure Note vs Structured Protection ETF (A fee samples bellow)

Alternatives with more liquidity, lower investments and maybe lower fees
https://www.ishares.com/us/products/337965/ishares-large-cap-max-buffer-jun-etf
https://www.calamos.com/capabilities/structured-protection-etfs/
There are new products and don't have a lot of history - I am looking to incorporate them into my models once the pass the filters…
Documentation
https://www.blackrock.com/us/financial-professionals/insights/ishares-buffer-etfs