How to compare two Data Frames to Add Missing Data based on Specific Condition

The problem with providing example in this way are that forum users can not copy and paste the example and directly use them , but would have to go through additional steps. To get the best help, it's best to remove as many barriers as possible to others to work with what you have to help you. Therefore you can use datapasta package or base function dput() to represent data examples in a directly runnable way.
FAQ: How to do a minimal reproducible example ( reprex ) for beginners

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