There's the issue tracker at https://bugs.dolphin-emu.org/
But before filing new issues, make sure to:
1) Search for existing issues to see if you problem hasn't been already reported
2) Search for similar issues, you may find workarounds on the reports or links to PR which might fix your issue
Also, if it's an issue with the Android port, keep in mind that currently we have only one or two devs occasionally working on it (in other words, it might take a long time until someone works on a fix, if it's even get fixed at all) and that most of the issues this port currently have comes from bad GPU drivers, so, if your issue is caused by bad GPU drivers, there's little to nothing to be done...
But before filing new issues, make sure to:
1) Search for existing issues to see if you problem hasn't been already reported
2) Search for similar issues, you may find workarounds on the reports or links to PR which might fix your issue
Also, if it's an issue with the Android port, keep in mind that currently we have only one or two devs occasionally working on it (in other words, it might take a long time until someone works on a fix, if it's even get fixed at all) and that most of the issues this port currently have comes from bad GPU drivers, so, if your issue is caused by bad GPU drivers, there's little to nothing to be done...
Avell A70 MOB: Core i7-11800H, GeForce RTX 3060, 16 GB DDR4-3200, Windows 11 (Insider Preview)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)