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I flashed my s8+ with LineageOS 4 or 5 months ago and am happy with the results.

You'll need to check if your snapdragon or exynos for compatability.

It gets you the latest version of android (since samsung decided that 2 years is all they're willing to support their flagship phone for) and a complete lack of bloatware.

I'll add that some apps (noteably netflix and banking) can throw a hissy fit on rooted phones and you will have to use something like Magisk to get the app store to function correctly and allow you to download the apps.