One doesn't follow the other. Apart from the protagonist there are no real links until the later seasons. Its a prequel and is based around the development of one character. Sounds like you wanted a continuation of Breaking Bad, which by definition it isn't. Its about different people who just happen to meet. Just enjoy it for what it is, which is brilliant telly.
I've long had a barometer of people, 'The Better Call Saul Test'.
Those who don't get it and want it to be something else are, in my view, vacuous