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Why the 7 worlds of TRAPPIST-1 waltz in peculiar patterns
https://www.space.com/trappist-1-history-orbital-resonance
The stability of the TRAPPIST-1 system is the result of a more unstable past.
Don't recall TRAPPIST-1 mentioned in any news but seems much effort has gone into studying this fly-speck.
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Key point :
"Some planetary systems manage to keep their resonance patterns, and TRAPPIST-1 is one of those systems."
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Anton Petrov has done a bunch of videos about TRAPPIST-1. PBS Spacetime has too. Both are on youtube if you want to learn more about the system.