In the presented situation, are you allowed to pull over by the kerb before the sign?

In the video you are driving along a street in a town between houses; on the right, on a lamp post, there is sign B-36 "no stopping" with plate T-25c with an arrow pointing down. You must not stop by the kerb before the sign - the plate means that the ban ends only at the place where the sign stands, so it applies on the section before it. The answer is: no.

The Regulation on road signs and signals states that sign B-36 means a ban on stopping a vehicle and applies to the side of the road on which it stands; plates placed under sign B-35 or B-36 show: T-25a - the beginning of the ban, T-25b - its continuation, T-25c - the end of the ban. The downward arrow is exactly T-25c: it tells the driver that the ban which applied earlier ends here. Stopping just before such a sign is therefore stopping in the no-stopping zone. You may stop only beyond the sign, as long as another rule does not prohibit it - for example being close to a junction or a crossing. The ban does not apply to a vehicle brought to a standstill because of traffic conditions or traffic rules, for example in a traffic jam, but stopping on purpose, even for a moment, is already a petty offence.

Legal basis: § 28 para. 2, para. 3 point 1 and 3 and para. 7 of the Regulation on road signs and signals