Version 1.3.281 as well as the prior unstable release 1.3.277 consistently use 8-10% of an idle system’s CPU, which is enough to engage cooling fans even though the system is otherwise idle.
Environment
Windows 11 Pro 23H2, 64bit (up to date).
NVIDIA 3080Ti, 12th Gen Intel(R) Core(TM) i9-12900HK, 32GB
Version 1.3.281 as well as the prior unstable release 1.3.277 consistently use 8-10% of an idle system’s CPU, which is enough to engage cooling fans even though the system is otherwise idle.