stockfish - Why do Engines show a fraction for the Depth and Current Node values? - Chess Stack Exchange

Forgive me if this has been asked elsewhere, but I've both Googled and searched here at CSE and cannot find an answer. When I'm using an Engine for analysis (in this case, Stockfish 15), I've noticed

How does Leela Chess work? What are its neural network inputs and output? - Quora

Why can Stockfish give different evaluations at the same depth? - Quora

engines - Is Houdini 6 a Stockfish clone? - Chess Stack Exchange

NPS - What are the Nodes per Second in Chess Engine Analysis

The neural network of the Stockfish chess engine

Why can Stockfish give different evaluations at the same depth? - Quora

Does it mean my ELO rating is 1500 if I managed to beat Stockfish level 3? - Quora

Why can Stockfish give different evaluations at the same depth? - Quora

NPS vs Time-to-depth: What you should look at when analyzing with Stockfish

Engine doesn't recognize best move - Chess Forums

Deep Reinforcement Learning – arXiv Vanity

stockfish - Why do Engines show a fraction for the Depth and Current Node values? - Chess Stack Exchange

Stockfish will analyze a chess position through to (for example) depth 45 and announce a mate in 10. When it reaches depth 56 it finds an improvement, to mate in 9. Why

Why can Stockfish give different evaluations at the same depth? - Quora