Its a booked frog strategy. Chrome used to be great and was quite open. The internet has ramped up advertising in general, tracking in general. So, ad blockers became more commonly used. So it started to hurt them much more. Its a self perpetuating problem of cat and mouse. Chrome being the platform while owned by the largest advertising company was never going to end well.

However, there’s not much between browsers these days in terms of technical ability. So, hopefully the trickle of movers becomes a wave. Open standards and competition are better for everyone.