I haven't ever noticed a productivity hit from alt-tabbing.
Many of the devs I work with use Spaces and the three-finger slide to move between apps. However this doesn't work if you're not using the trackpad or Magic Mouse.
Additionally, since I'm usually just moving between a few apps (VSCode, terminal, browser, Teams) it's usually pretty easy to just alt-tab or alt-tab-tab with no loss of context.
Many of the devs I work with use Spaces and the three-finger slide to move between apps. However this doesn't work if you're not using the trackpad or Magic Mouse.
Additionally, since I'm usually just moving between a few apps (VSCode, terminal, browser, Teams) it's usually pretty easy to just alt-tab or alt-tab-tab with no loss of context.