Tankies basically are just “pro-whatever Russia is at the moment.” They’ll claim to be leftists, but are apologists for whatever Russia or China does internationally. Basically, they’re pro-authoritarian so long as it’s not the US being authoritarian or someone the US is turning a blind eye to.
These are people who buy whatever non-American propaganda is hook, line, and sinker because they’re desperate to prove they’re “better” than the average person and tune out any “mainstream” media outlet.
Nevermind that if they’d pay attention, their “sources” have mysteriously gotten in bed with China and suddenly are OK with genocide of the Uighur people and things like that.
Realistically, they’re giving Ukraine their old stocks and modernizing, something the Bundeswehr and NATO have been calling for for years.