$ cat /usr/bin/wechat.sh
#!/usr/bin/bash

export QT_IM_MODULE=fcitx # 手动添加
export GTK_IM_MODULE=fcitx # 手动添加
export _portalConfig=/usr/lib/wechat/portable-config
env|grep fcitx # 看看有没有生效

portable $@

$ wechat.sh --actions connect-tty
GTK_IM_MODULE=fcitx
XMODIFIERS=@im=fcitx5
SDL_IM_MODULE=fcitx
QT_IM_MODULE=fcitx
[Info] Guessing XDG Config Home @ /home/jeshrz/.config
[Info] Processing X Server security restriction...
[Info] Detecting display as :1
xauth:  file /home/jeshrz/.Xauthority does not exist
xauth:  file /home/jeshrz/.Xauthority does not exist
xauth: (argv):1:  bad "add" command line
/usr/bin/portable: line 456: moeDect: command not found
Launching com.qq.weixin (unsafe)...
/usr/bin/portable: line 402: /home/jeshrz/.local/share/WeChat_Data/portable.env: No such file or directory
GTK_IM_MODULE is fcitx
QT_IM_MODULE is fcitx
Running as unit: WeChat.service
Press ^] three times within 1s to disconnect TTY.
src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000

src/gbm_drv_common.c:131: GBM-DRV error (get_bytes_per_component): Unknown or not supported format: 808530000