The current uptrend is just the wave (B) of (ABC) and afterwards the pair will go down one more time to 88,5-87,5 (the buy zone) prior to the major depreciation of the rubble, what is in line with the last up-wave on most of the markets.
So in general, the Russian rubble is not ready to devalue at this time and will start depreciation together with the major correction on all the markets which I presume to start at the end of May-June 2021 and last till October 2021