If you use JetBrains Toolbox to install and update your IDEs, the latest version of Toolbox (3.3.0.74186) has introduced a new background service (daemon). It’s enabled by default and it does one thing: it handles jetbrains:// URIs.
If you don’t know what a jetbrains:// URI is or if you have never used it, you may want to disable this service and save about ~30MB of memory:
Update: on Linux, it also creates some garbage in /tmp. This can be a problem if /tmp is mounted in memory and you don’t have a lot of memory, per example when you’re using a VM.
Feel free to upvote TBX-18021.