Gee, imagine that. Velocity decreases the closer the gas is to a fixed surface.
Why do you keep getting distracted by minutia that does not affect climate?
"Does not affect climate". You speak with snarky absolute certainty like some pompous, know-it-all liberal. You don't know with absolute certainty how various factors affect climate on Venus. How do you know the upper level winds do not act to help distribute heat around the planet? Or act in some other ways to contribute to climate?
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Climate and weather
Winds of about 224 mph (360 kph) keep the clouds of Venus in constant motion.
Though the planet spins slowly, only once every 243 Earth days, the clouds zip around the top of the planet's atmosphere every four days. But wind speeds drop closer to the surface, where they only move a few miles per hour.
On Earth, seasons change based on the planet's tilt: When a hemisphere is closer to the sun, it experiences warmer temperatures. But on Venus, most of the sun's heat fails to make it through the thick atmosphere. As such, the planet not only doesn't experience significant temperature changes over the course of the year, it also keeps things constant from night to day.
The clouds of Venus appear bright white or yellow. Unlike Jupiter or Saturn, there are no discernible bands or storms visible to the naked eye.
https://www.space.com/18527-venus-atmosphere.html
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"It [Venus] has severe winds that blow at speeds greater than 100 m/s; although, the winds don’t reach down to the surface of the planet. It has sulfuric acid clouds which send down torrents of sulfuric acid rain."
https://www.universetoday.com/36296/climate-of-venus/
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"It [Venus] is also the hottest planet in the Solar System, experiencing mean surface temperatures of 735 K (462 °C; 863.6 °F). Above the dense CO² layer, thick clouds consisting mainly of sulfur dioxide and sulfuric acid droplets scatter about 90% of the sunlight back into space.
The planet is also isothermal, which means that there is little variation in Venus’ surface temperature between day and night, or the equator and the poles.
The planet’s minute axial tilt – less than 3° compared to Earth’s 23.5° – and its very slow rotational period (the planet takes around 243 days to complete a single rotation) also minimizes seasonal temperature variation."