The sell is more that the data MS/DDG has is hopefully going to be siloed away from Google and so it is getting more expensive for an given entity to cross-reference information about you. And if we're lucky competitive pressure will peel DDG away from MS sooner or later if they get larger.
[0] This logic does lead to an argument for a fair chunk of HNs readership to use Yandex, because they are hosted in a country that is effectively at war with the English-speaking world but not presently targeting English speakers.
As you have noted, Russia is at war with the ~English-speaking world~ West, so it is much more likely to use this data against the users than in the past.
Besides, it'd be a struggle for the Russians to even figure out who they are. They'd only have search data. That is powerful but probably not enough in many cases.
Create disposable template for the browser with deleted browser dot-folder with no network,
(Optional) create appvm qube (or disposable template + disposable) for ProtonVPN or Mullvad
Create named disposable qube utilising the disposable template for the browser, and either sys-whonix or your VPN qube for network, and enjoy the most anonymous internet you will ever get!
If you use DuckDuckGo: Now, you have "Yahoo Ads" instead of Microsoft Ads, but these ads, they are in fact Microsoft Ads, except sold via Yahoo.
In front of these Yahoo Ads, DuckDuckGo actually adds its own click-through tracker.
Now you have DDG, Yahoo and Microsoft tracking you.
Bonus point if you click on an Amazon affiliate link, because in that case, the Amazon affiliate (DuckDuckGo) knows item-per-item what you purchased.