Bangla fonts in ‘Zoom App’ and ‘Telegram App’ are problematic and I think it needs to be changed. Gnome Tweak tool could not change the font for them.
Someone suggested me to use Qt5 settings to change font. I tried that app and chaged font. The bangla fonts for ‘Manjaro settings manager’ and ‘OBS studio’ were fixed. But the fonts for Telegram and Zoom be are still causing problem and they do not follow ‘Qt5 settings’
I tested on POP OS (bangla language packs were installed already) by installing Telegram and the fonts were okay.
So then I uninstalled Noto Fonts and Noto Cjk fonts from Manjaro Gnome installation hoping that it will force those apps to use other fonts. But Telegram and Zoom are still using those problematic Fonts for Bangla language. I don’t know why those apps don’t use ‘Noto Sans
Bengali’ for Bengali text and ‘Noto Sans’ for English texts automatically.
And how the Bengali language packs for Ubuntu or Pop OS sets the fonts correctly automatically I don’t understand. (By the way don’t tell me to switch distro because I love Manjaro Gnome for many reasons)