Can you speculate on what the probe would do?
If the probe was built to withstand higher temperatures it could descend towards the end of the mission and do more work at lower altitudes. It's unlikely there would be a surface mission because of the weight involved with keeping electronics working at 464°C/867°F.
An initial probe to determine if life is actually there is going to be tough, but maybe doable. But the real jazz is in sample return.
You'd want those little critters in human hands so you can do experiments and really study them. That is a very tall order, depending on the conditions that these bugs may be in. You gotta keep them alive for the return trip, with only basic ideas of their life cycle and proclivities. An aerobrake, that's hard, but doable. But if the things only live in a thick part of the atmosphere, then you gotta get back into orbit while hanging off a balloon. Or something like that. Not easy.
Even on Mars, with less gravity and less atmosphere and cold temperatures, we've never done sample return. It's really really hard to do. Venus ups the hard parts of Mars even more so.
But Life (if it's there) is just too seductive. It'd be a space race like no other, NASA, ESA, Russia, China, all vying for viable sample return. God, that may be a really cool thing to see. It would totally change how we think of ourselves in the solar system, if not the universe.
[0] Venus is tidally locked to the Sun (kinda), year/day is the same time length.
If there ever were a premise for one in our time it would be fusion, or carbon extraction... but this seems to be either woefully underfunded or in the hands of private enterprise.
Given the way the starlink was heralded by the media, the time of nations challenging each other to technological conquests is now commandeered by the venture capitalists.
These are not research fields with a definite, discrete goal condition. They are ongoing research fields.
The discovery of extra-terrestrial life is a huge, discrete goal condition. Everyone will remember which team/country first discovers and demonstrates such life. Few will remember who confirmed it (i.e. who came second).
It's not like we're short on Nobel Prizes here.
https://www.youtube.com/watch?v=y1u-jlf_Olo
A caller asked Professor Sara Seager about sending a probe with a balloon, and she likes that idea, and said that was what the Vega program previously did:
https://en.wikipedia.org/wiki/Vega_program
>The Vega program (Cyrillic: ВеГа) was a series of Venus missions that also took advantage of the appearance of comet 1P/Halley in 1986. Vega 1 and Vega 2 were uncrewed spacecraft launched in a cooperative effort among the Soviet Union (who also provided the spacecraft and launch vehicle) and Austria, Bulgaria, France, Hungary, the German Democratic Republic, Poland, Czechoslovakia, and the Federal Republic of Germany in December 1984. They had a two-part mission to investigate Venus and also flyby Halley's Comet.
A Russian caller mentioned a proposed Russian space mission to Venus called Venera-D:
https://en.wikipedia.org/wiki/Venera-D
>Venera-D (Russian: Венера-Д, pronounced [vʲɪˈnʲɛrə ˈdɛ]) is a proposed Russian space mission to Venus that would include an orbiter and a lander to be launched in 2026 or 2031. The orbiter's prime objective is to perform observations with the use of a radar. The lander, based on the Venera design, would be capable of operating for a long duration (≈3 h) on the planet's surface. The "D" in Venera-D stands for "dolgozhivushaya," which means "long lasting" in Russian.
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