Ban around practicing (regressive) Islamic practices in public

Ban on Islamic prayer (Namaz) in public

In the UAE, namaz on public property is illegal
Use of loudspeakers by mosques is restricted in Saudi Arabia for only first two out of five prayers in a day.
Namaz in public is illegal in China. Copies of prayer mats and Quran are confasicated by the authorities.
When the loudspeakers first came to India, there was a religious decree (fatwa) against using them for call to prayers. However, they become fairly prominent afterwards.

11 Apr 2011 - France bans burqa in public
30 Sep 2016 - Bulgaria bans burqa in public
6 Sep 2016 - ISIS bans burqa near its security centres in Iraq!
10 Jan 2017 - Morocco bans burqa sale and production
1 Sep 2017 - Tajikstan passes law to stop Muslim women wearing hijabs and even celebrations of Islamic festivals
29 Sep 2009 - Kazakhstan’s bans Hijab in schools
5 Feb 2021 - Indonesia bans forced religious attire in schools
28 Sep 2021 - Sri Lanka passed law to ban burqa in public
21 Sep 2023 - Switzerland passes a law to ban burqa and other full-face coverings
1 July 2025, Kazakhstan officially bans burqa and niqab in public

Exhaustive list of countries with a ban.