As far as I can tell the Russian leverage has so far proven to be very small (it caused Germany to hesitate at the start of the invasion but right now Germany pushes heavily for supporting Ukraine) and it is decreasing for each day that the gas storage are getting filled and more LNG terminals near completion. Endangering this progress right now seems foolish.
It normally takes years, however they are acquiring "floating LNG terminals", which should be there by EOY, probably somewhere around October-November.
Pick your favorite search engine with those words for a source of your choice, it's in the press.
The EU started funding LNG terminals back in 2018, or possibly even earlier. Here is an old paper form 2019 from the EU which lists several projects which were supposed to finish in 2022 or 2022 even if this war has not happened.
