Indeed, most airlines around Europe that fly E-jets have less legroom in economy because normal economics are in play (cost sensitive customers, maximise number

Indeed, most airlines around Europe that fly E-jets have less legroom in economy because normal economics are in play (cost sensitive customers, maximise number of customers) as there isn't the same mainline/regional split (where European airlines have regional arms, they're typically fully-owned subsidiaries and essentially differentially by type of aircraft rather than capacity limitations).