DX consistenly degrading with last updates

The developer experience is really consistently degrading throughout the past months with intellij products. I do not seem to be alone with this issue: https://intellij-support.jetbrains.com/hc/en-us/community/posts/25646053648146-Intellij-IDEA-quality-degradation?page=1#community_comment_31392894942482. 

Each Update leads to new potential issues, and even some very basic ones. One of those get fixed with the next updates, others persist, etc. A new one that is particularly annoying is the fact that the line break stopped working during PHPDoc comments in PHP Files. Usually, whenever I typed “/**” and then hit enter, the IDE automatically completed that to:

/**
 * {CURSOR POSITION}
 */		

Now, the IDE simply does nothing. Only when I hit Enter after I typed “/*”, I get:

/*
 * {CURSOR POSITION}
 */		

… but you may noticed the incorrect PHPDoc syntax (must start with two **). Also, If I hit Enter right after the closing `*/`, it does not jump to the next line. Also, If I hit enter while within the PHP Doc block starting with `/**`, it also does nothing. So it seems like hitting Enter simply is broken within PHPDoc Blocks at the moment.

Another terribly annoying thing is that the mac started to crash once a day at least. IntelliJ IDE Version IntelliJ IDEA 2025.3.3, Build #IU-253.31033.145, built on February 20, 2026, mac version macOS Tahoe 26.2. I started to reduce the memory heap config in intellij, but that does not work. It is also weird to notice that when my mac crashes, my intellij eats up almost all of my mac's RAM (8GB, activity monitor launched when it crashes shows that intellij IDE is around 6.8 GB RAM consumption). Due to that my mac actually crashes completely and stops reacting entirely, and I have to do complete mac shutdowns daily. This sometimes led to corrupted files or even lost modifications. 

What fixed this for now is changing the design theme from dark islands to dark. Is this normal ?