when a company announces buyback program, does this mean a good signal?

im tracking down the AVs sector for a long time now and recently WeRide Q4 doubled their revenue, narrow losses by 34% and they also announced $100M buyback which has me considering the cash incinerator label for this industry. Companies like Tesla or Aurora are looking for the next multi billion capital raise and WeRide actually pivot to returning capital is a huge psychological shift to me. The management signals they've hit a commercialization inflection point where they no longer need to hoard every cent just to keep the light on. Product revenue jumped 310% last year, 1100 vehicles are scaled globally. Seeing this like a breath of fresh air in the market right now.