Answer a few questions. Get a straight answer.
Not sure DDR4 or DDR5? Check with Crucial's scanner or look up your motherboard/laptop model.
For basic browsing, email, and office apps, usually yes. For gaming, streaming, editing, or running several heavy apps at once, 8GB is tight and you'll likely notice slowdown. Most modern games alone recommend 16GB as a baseline.
For most games at normal settings, yes, 16GB is the common baseline. If you're also running Discord, a browser with many tabs, and background apps at the same time, you can start pushing into 32GB territory.
Only if RAM is genuinely your bottleneck. If your RAM is already comfortably under 90% usage during gameplay, more RAM won't add FPS, since the limit is elsewhere, usually the GPU or CPU. More RAM mainly helps when you're currently running out of it and the system starts swapping to disk, which causes stutter rather than a flat low frame rate.
Open Task Manager (Windows) or Activity Monitor (Mac) while doing your normal heavy tasks. If memory usage sits near 90% or higher, RAM is very likely limiting you. If it stays comfortably lower and you're still seeing slowdown, the cause is probably your GPU, CPU, or storage instead.
Depends entirely on what you do. For general use and most gaming, yes, 32GB is more than most people need. For video editing, 3D rendering, or CAD work, it's closer to a practical minimum for real projects rather than excess.
Capacity matters more first. If you don't have enough RAM, no amount of speed fixes that. Once you have enough capacity for your workload, speed becomes a smaller, secondary factor, usually worth a few percent of performance rather than a dramatic difference.