Is the Sony a7R IV (A) still worth it in 2021?

As we approach the tail end of Sony's typical upgrade cycle for their a7R series, I thought I'd emphasise how relevant and important this camera remains to be in the super high resolution segment of the market.
Sony a7RIVA update
https://www.techradar.com/au/news/sony-explains-its-strange-new-sony-a7r-iv-and-a7r-iii-mirrorless-cameras

Sony A7R IV https://amzn.to/36PvYZX
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Microphone I use https://amzn.to/2HlR5Z8

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Видео Is the Sony a7R IV (A) still worth it in 2021? канала Easton Chang