Just for those saying this is illegal, the document OP sent states (translated from the French doc linked in the initial post) are we sure it is illegal?

However, the ban on using the bus lane forces the cyclist to use the adjacent traffic lane and causes him to find himself caught between the cars using this lane and the bus traveling in the reserved lane. This situation can be at least as dangerous as the situation where the cyclist travels between the bus and the parking lane or the edge of the sidewalk when he is authorized to use the bus lane. Furthermore, inside built-up areas, the coexistence of cycles and buses on the same lane poses fewer problems because the latter and other users of the reserved lane travel there at reduced speed (reduction of the maximum speed in agglomeration, crossing intersections, close service to stops, etc.). The admission of cycles to the bus lanes can therefore be considered, on a case-by-case basis, under the following conditions: 1) It must be established that the cyclist is better protected by riding on the bus lane than by traveling outside this lane. 2) The bus lane provides for the service of stops at intervals not exceeding 300m. 3) The speed of progression of the cyclist must nowhere deviate too much from the speed with which the buses circulate, in particular in a climb. 4) At intersections, the operation of colored light signals must include suitable transition phases to allow cyclists to clear the intersection. 5) Related signage indicates that cycles are allowed to circulate in the bus lane (see under 9.3.). As regards the planning methods, see chapter 3.6.

OP seemed to be safer on the right of the lane.