Exactly.

I could refrain from searching everything, but then I would probably miss some content. Now, I'm absolutely fine missing on content like a quest (or ways to resolve it) if I didn't find particular areas or NPCs, or simply if I chose a certain way to resolve it (which is not compatible with other ways). But for containers it's different, it's not that I didn't find them, and it has no relation to the story or roleplay.

Fundamentally, this is a UI problem. The game encourages exploration, but the UI for it is a pain.

On tabletop, you'd tell the GM "we search the room", or "we loot the bodies". In BG1-2 Enhanced Edition, you can view all loot on the visible bodies in one click.

In BG3, you have to tediously go through the motion of searching all the containers (or bodies) in the room, before you can resume your adventuring. You have to pause your immersive play, wrestle with the UI, and then resume.