I have a 12 core Ryzen 9 with 64GB of RAM, and clicking the emoji reaction button in Signal takes long enough to render the fixed set of emojis that I've begun clicking the empty space where I know the correct emoji will appear.
For years I've been hitting the Windows key, typing the three or four unique characters for the app I want and hitting enter, because the start menu takes too long to appear. As a side note, that no longer works since Microsoft decided that predictability isn't a valuable feature, and the list doesn't filter the same way every time or I get different results depending on how fast I type and hit enter.
Lots of people literally outpace the fastest hardware on the market, and that is insane.
The comment I quoted was about 20 second load times, not a slight delay before something is clickable. That's the exaggeration.
FWIW, I don't see the same slowness in Signal, like the other poster.
I'm sure some of these people are using 10 year old corporate laptops with heavy corporate anti-virus scanning, leading to slow startup times. However, I think a lot of people are just exaggerating. If it's not instantly open, it's too long for them.
I, too, can get programs like Slack and Visual Studio Code to launch in a couple seconds at most, in contrast to all of these comments claiming 20 second launch times. I also don't quit these programs, so the only time I see that load time is after an update or reboot. Even if every program did take 20 seconds to launch and I rebooted my computer once a week, the net time lost would be measured in a couple of minutes.