Steps to reproduce

Hi,

I've been developing a large flutter app for a few years now. Now starting with flutter version 3.38.0 I'm experiencing frequent freezes of the UI where it's completely unresponsive for many seconds at a time. on a single, specific Linux machine, but not others. Over the years I've upgraded to all new versions and never encountered this before.

This doesn't happen with the same code base on any other platform that flutter supports (I use all of them), nor does it happen on other Linux devices I have, when running the same app package which exhibits the problem on my desktop.

The problem desktop is running an up to date Ubuntu 25.10 with a 6.18 kernel. I suspect there is some sort of interaction between flutter and my system.

Unsure how to debug this further. Help appreciated.

Expected results

No random app freezes

Actual results

Frequent freezes of the app

Code sample

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Screenshots or Video

Logs

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Flutter Doctor output

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