[MOVED] How to insert a greater space in TForm.Caption (Linux GTK2)?

[Hartmut]

I want to separate 2 infos in the Caption of a TForm with a greater space like "<info1>    <info2>". On Windows this is no problem, you can use normal blanks for that. But on Linux Ubuntu 24.04 with GTK2 there is always only 1 Blank displayed, even if I insert 5 of them. Using special UTF8-Blanks instead made no difference. I tried without success:
#$C2#$A0
#$E2#$80#$80
#$E2#$80#$84
#$E2#$80#$86
#$E2#$80#$87
#$E2#$80#$8A
#$E3#$80#$80

Is it impossible to have a greater space in TForm.Caption on Linux GTK2 or which code must I use?
Thanks in advance.

[Hartmut]

Because I did not get even 1 answer after a longer time I moved this question to another subforum https://forum.lazarus.freepascal.org/index.php/topic,72827.0.html
If you can help, please answer there and not here.
Maybe one of the moderators can delete this Topic here.
Thanks.