Solved by computers has a formal meaning, pertaining to absolute knowledge of the best move in every situation. My understanding is that chess not solved in that sense.

I understand what you mean though, so fair enough. But I think it's generally only worth being nitpicky about definitions if it's important to maintain them and I think in this case formally solved is one of the important ones.

If we take it outside the esports realm, you could say the vast majority of sports has been "solved" since cars are trivially faster than humans, trebuchets are way better for throwing things over long distances, hydraulic cylinders beat anyone at lifting heavy stuff, etc. Nobody is advocating to stop holding athletics events because machines can do the specific task better, so why should we stop holding chess events for humans because a computer can do it better?