Your computer at work, which has twice as much memory and CPU through put as the one you had 10 years ago is still slow and frustrating because every program is bloated with "apps" to open and edit every other type of file.
No, I do not want to open my Excel spreadsheet in Outlook, or Teams, or my company's preferred browser, or my other browser I like better. I want it to open in GOD DAMN EXCEL!!
So much redundancy and slow loading because of it.
Do the one thing well.