Well, I just can't pass by, so let me express my opinion too:
Firstly, As it was already written above: there have always been a lot of Ukrainian players on this field.
Secondly, many people put the flag of Ukraine on the avatar in support, and this is something that could really attract your attention and because of what, it might seem to you that there have been more of them over the past 1.5 years.
Thirdly, your assumption is absurd, because even if there is some meager percentage of players from Russia trying to play using third-party programs, then why on earth should their imaginary location point be Ukraine????🤦♀️ (this is as ridiculous as the assumption of it).
In addition, the overwhelming majority understands that bypassing the system will not end well.
And Fourth, to make unfounded accusations of fraud, supported only by the phrase "As for me ..." is absurd and more despicable, because you are just adding fuel to the fire in a situation that is already very difficult.
What do I think? - as for me, Russian citizens have a place to play and this is a reasonable opinion, since it's no secret on which platforms there really was an increase in players from Russia (And it's not Pokerstars)🙂