The reason is tax law and it applies to all companies not just tech. Removing the double-taxation of dividends would fix so much of our economy.
If you run a stable, no-growth but profitable company, and each year return the profits to the owners (shareholders) in the form of a dividend, that's bad because the income is first taxed when the corporation declares it as income and then again when the shareholders receive the dividend.
If instead you don't issue the dividend, but re-invest to grow the company, then the value of the shares can increase without creating a taxable event for the shareholders.
We could avoid a lot of the boom-bust cycles, enshittification of products and other economic problems if we just structured tax law to encourage stable, profitable companies issuing boring predictable dividends instead of our current system that requires infinite growth.