For this post I am going to talk about Solution Filtering for Visual Studio Code. To improve performance when opening large solutions, Visual Studio 2019 introduced solution filtering. Solution filtering lets you open a solution with only selective projects loaded. Loading a subset of projects in a solution decreases solution load, build, and test run time, and enables more focused review.
Link below to a video talking about working with Solution Filters, that allow you to selectively choose which subset of projects get loaded in order to improve Visual Studio Code. Second link is to a blog from Microsoft, with case studies of organizations using Solution Filters.
Video on using Solution Filters in Visual Studio Code.
Link below to a blog by Microsoft, with more information on Solution Filters.