Yeah, always their own version of <popular google app>, used by 2 people per month but always running in background. I heard they feared to be thrown out of “Android” certificate program (no Play Store anymore).

Their launcher was always slow and laggy and a ressource hog and only got better, because hardware got better.

My last Samsung was to Kitkat times (Galaxy S3) but even then the whole boot chain was basically custom made (guess for knox) and you had to use their proprietary paid software to edit boot animations. And <fancy gack> always needed a Samsung version.

Samsung is good in hardware and bad in software.