My favorite glitch that has persisted for many versions is how if you background it while it is launching, the GUI becomes frozen and the only way to use it is to kill the process and then launch it again making sure to not switch to any other apps while it loads. The worst one that comes to mind, because it happens all the time when I am using it, is when you hit undo once it could undo multiple recent changes (never know how many exactly, just have to guess), and if you then redo in panic it would only redo one of them, so you have to manually do it (fun when it involves fine color adjustments). For my own sanity will not try remembering all the other ones. In addition, a lot of counter-intuitive design choices, messy color management, etc.
Proprietary cross-platform software for multimedia production tends to be polished but Resolve genuinely feels worse than an Electron app, with subtle delays and micro-freezes in many interactions.
To be fair now with all those “AI” features they could probably say it is optimized for “agents” or something…
Maybe there is something wrong with you system?