Google Chrome generally used around 25mb per tab in 2010. Today, that number is often 500mb or even 1gb.
What's oddly being ignored in this entire thread (so far, as of the time of writing) is that back in 2017-2018 Discord was an Electron app and was completely inaccessible. The web did not magically bring accessibility to the table -- we disabled people had to go yell at Discord to fix their shit, and even then it took them like 2-3 years, and even now Discord has some very very weird accessibility issues that will randomly crop up here and there.
And it doesn't require that huge amount of RAM, no. What requires the Chrome RAM is running JavaScript and do it fast, and a lot of extremely complicated features, most of which a single app will never use.
1. Use the make everything bigger/font size settings to increase the size of what I currently can't see
2. Restart
3. Open every application I need, and go through every major feature in each of them to determine if I can still see things comfortably, while making sure no elements have exploded in size as this also leads to usability problems
4. If not, go to 1
I have to do this every time I install a new application, or one of them updates and changes their UI or decides to opt into the Windows accessibility settings. The latter one happened a few years ago with Firefox, and cost me a day to sort.
For a long time, and mostly out of frustration, I wanted to build my own stack of software around my vision. But the mammoth amount of effort it would require meant I never went through with it.