I’m using 7.3.7.2 with Ubuntu 22.04.2 LTS. I generally have multiple Writer and Calc files open at once. LibreOffice very frequently crashes when using any mode to switch files except File>Open, and sometimes when opening another application. This is a new computer with plenty of RAM.
This is an old post, but the problem appears to have resurfaced in various forms. My problem in particular is that LibreOffice Version: 24.8.2.1 started crashing every few key strokes in Ubuntu 22.04, running KDE Plasma Version: 5.24.7 Graphics Platform: X11.
In short, LibreOffice became unusable.
The problem appears to have been the new NVIDIA 550 drivers. I removed the 550 drivers and reinstalled the NVIDIA 535 drivers and the problem went away.
I hope this may help someone.
This driver permutation also solved a problem of mine though a bit differently. I am under Fedora with KDE Plasma. Fedora switched to Wayland but KDE is slightly lagging behind. One of my computer has a now-obsolete nVidia GPU for which the proprietary driver does not support Wayland. My only choice was to use nouveau. Another computer is equipped with a recent GPU. There, nouveau is unusable but the proprietary driver caused crashes … until the last Fedora upgrade to release 41. Now, the latest nVidia driver works like a charm.
You should probably consider update your distro to 24 and KDE to 6.x. KDE with Wayland seems to catch up with GNOME.