Kindle Scribe: any way to block firmware updates for potential jailbreak? pointless?

Purchased the Kindle Scribe deal today.

Question: is there any point to blocking software updates such that a future jailbreak might be possible?

Or, is this pointless given that it'd lock me out of notes/note taking updates that might happen between now and a future jailbreak?

A jailbreak seems unlikely given there haven't been any for a long time correct? So perhaps pointless to be waiting for something that may never occur?

Many thanks!