When most people say ‘Buddhism’, what they are referring to is Sutrayana, the path of Sutra.1 I use ‘Sutra’, for short. Sutra is the dominant form of Buddhism available today. It is so dominant that it might be fair to say it has a monopoly on Buddhism. The majority of Buddhist practitioners do not know about alternatives.
Sutra centers on the idea that complete liberation from suffering is possible. By doing the right things, being the right way, eventually, we can extricate ourselves from a cycle of perpetually self-inducing misery. Many secular presentations of meditation have adopted this underlying framework. The language is the same, barring removal of the most prominent forms of magical thinking.
Is this realistic? The only way to eliminate suffering is to cease sensation. This is the purpose of meditation practices intended to achieve no-self and liberation from Samsara. Is this what you want?