Some software bloat is OK

Back in the good old days, I used to play Quake 1 multiplayer (QuakeWorld) a lot on Internet servers. You could place an "autoexec.cfg" file in Quake folder, that automatically executed commands after launching the game, including /connect [IP Address]

The time needed from the moment you launched the game (clicked on the .exe) to the moment you entered the server (to the map view) with all assets 100% loaded was about 1 second. Literally! You click the icon on your desktop and BAM! you're already on the server and you can start shooting. But that was written by John Carmack in C :-)

From other examples - I have a "ModRetro Chromatic" at home which is simply an FPGA version of the Nintendo Game Boy. On this device, you don't see the falling "Nintendo" text with the iconic sound known from normal Game Boys. When I insert a cartridge and flip the Power switch, I'm in the game INSTANTLY. There's simply absolute zero delay here. You turn it on and you're in the game, literally just like with that Quake.

For comparison - I also have a Steam Deck, whose boot time is so long that I sometimes finish my business on the toilet before it even starts up. The difference is simply colossal between what I remember from the old days and what we have today. On old Windows 2000, everything seemed lighter than on modern machines. I really miss that.

A system like SteamOS can be made to boot within seconds - but it takes some effort to set it up like that and I don't think anybody there cares enough when most people would just put the Deck to sleep where it wakes up in a single second.

Game carts also have much faster access times than just about anything else contemporary because they're just ROM. If Linux, OpenGL, Vulkan, etc. were in the ROM of your Steam Deck, and your games were on ROM (not flash) carts, that'd boot up instantly too.

Windows 2000 boots up fast on modern hardware. You're looking through rose-colored-ass glasses if you think it booted up that quick on the hardware available at the time of release. Windows NT was a pig in its day, but at least it was a clean pig, free of spyware and other unnecessary crapware (unless you were like a client site I visited, and just let Bonzi Buddy, Comet Cursor, and such run rampant across your sensitive corporate workstations).