F35 and the F22 do have rhe ability to take out a plane before that plane even sees them.
Dogfights as a doctrine has still not gone away because there could be a time where pilots may have to face each other as a last resort. Air forces nowadays are trying to keep their pilots away from dogfights but have not done away with the concept.
You know losing a pilot along with a plane is millions gone down the drain hence why its best to keep them alive. But also training them for a dogfight is also what could save them because you dont want to send pilots who cant fight off another plane no matter how much comfortable technology can be.
Pilots will still be and should still be trained for dogfights yes, but at the same time the state of technology shouldn't be underestimated. Vietnam gets cited a lot as proof of the fallibility of missiles yet even in that war the unreliable and low tech missiles of the time were more useful than guns.
It's not impossible that modern planes engage in close air combat but
HOBS missiles almost negate the maneuverability of aircraft when they come within a few miles of each other. And before those come into play you need to account for Electronic Warfare. Who has the best vision will gain an advantage.
All this talk of dogfights...
Does Russia not have drones?
They have a handful but not as many as the US. Russia is till trying to recover from the collapse of the USSR. They have a lot of ideas and projects but have lacked the funding to bring many of them to fruition. Typically they will have a handful of cutting edge units supported by numerous older ones. For example, comparing the US to Russia in terms of fighters:
Advanced fighter
F-22 (US ~180) - Su-57 (RU ~ 5)
Modern Fighter
F-15 (US ~ 300) - Su-35 (RU ~ 100)
Light Fighter
F-16 (US ~1000) - MiG-29 (RU ~ 300)
That's not really how stealth works lol. The missiles aren't stealth and lock-ons are detectable. Our stealth planes can penetrate to advantageous positions and make the enemy's job a lot harder but they're not invisible.
Stealth is often conflated with invisibility, which it is not. The military likes the term VLO (Very Low Observability). However it is possible to attack without being detected. Radar and weapons were considered in the development of 5th gen fighters. AESA radars are built around LPI (Low Probability of Intercept) signals which can allow the tracking of targets without a detectable radar lock.
Russia actually has some capability in this area, but through a different technology path. They invested more into Optic and IR sensors and missiles which are harder to detect than radar guided ones, but with the introduction of MAWS that detect missile launches this advantage has eroded somewhat.