Truffle Suite is an ecosystem for Distributed Application (ĐApp or DApp) development, and it essentially consists of three different parts: Tool: Truffle, Ganache, and Drizzle. This is a well-established ecosystem utilized by a high number of developers. Furthermore, the goal of Truffle Suite is to ensure a more accessible development process.
Source: https://moralis.io/truffle-explained-what-is-the-truffle-suite/