Thumbnail Feedback Thumbnail should you keep brand?

EV Nick

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Hey all thumbnails! i've been keeping them on brand all the same theme and look
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However people like MrBeast and shown this type of branding doesn't get CTR rather he goes for Clickbait videos everytime theirs no brand over his brand.

Am i using the wrong method?
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My channel has a CTR for last 28 days of 4.4% with my latest video currently averaging 5.6%

What does everyone think? Stick with branding? Alter brand? or just got for clickbait?