I’ve repaired many flaky vintage mice by swapping the switches.

There are industrial microswitches that can take a ton of clicks and also you can tune the weight of the click by checking the datasheets.

Digikey and Mouser are your friends, you could probably pay for a dozen switches and a workable soldering iron for what it costs to replace some of these gaming mice.

If you’re on a budget, just get a clone Hako iron.