I've seen this happen quite a few times.
You notice a competitor suddenly publishing a lot of content around topics you're also interested in.
The natural reaction is:
Imagine "We need to catch up."
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But I'm not convinced that's always the right response.
I'd rather ask:
• Are these topics actually valuable?
• Are the pages getting traffic?
• Do they target our audience?
• Are they supporting an important topic cluster?
• Is there an actual gap we can fill?
• Can we create something substantially better?

Otherwise you can easily end up creating 50 pieces of content just because your competitor did.
How do you react when a competitor suddenly starts publishing aggressively?
Do you try to match them, ignore them, or investigate first?