java.lang.UnsupportedOperationException: You can't use HTTP/2: either OpenSSL is not available for linux_x86_64, or your Java version 17.0.8 is too old

Then, if that’s really what deployed on your Linux server you’re running Gatling on, I don’t know why it wouldn’t work.

You’ll have to provide a reproducer as described here: How to Ask a Question

It’s most certainly a deployment issue on your side, as it works as expected for other users and on Gatling Enterprise.