There is a definitive difference in terms of wired sound quality in LG's compared to Samsung. Even if you are using for Spotify only. LG's Quad DAC is in a league of its own and can drive high impedance earphones/ headphones much better than Samsung.
I don't know where you live, but here is India we are having the LG G8X brand new with Dual Screen slapped in for just $245. For that price you get Snapdragon 855 SoC, 6GB LPDDR4 RAM, 128GB UFS 2.1 internal memory, microSD card support for memory expansion (I am using a 256GB card), LG's Quad DAC (ESS ES9218P) tuned by Meridian Audio, adequately loud stereo speakers again tuned by Meridian Audio, DTS:X, and finally the detachable dual screen. For this bargain asking price G8X offers a lot in my humble opinion. Also Android 10 comes pre-installed, hence native DSD playback is no more supported. For PCM audio there are no issues. I am using it for a week now and am very satisfied with the purchase.
Regarding audio quality the sound signature is dramatically different from my B&O tuned LG V30+. V30+ tuning makes it analytical sounding with an acute knack for detail retrieval. Meridian tuned G8X is more musical and more forgiving on headphones while sounding lush and vivid but not loosing anything in terms of details. Both V30+ & G8X have their pros and cons in terms of audio quality as both audio tuning houses have their own preferences. Personally I like both.
http://www.lgnewsroom.com/2019/09/l...nce-mobile-multitasking-and-user-enjoyment-2/