Android:

New Youtube Clients with Material 3 Design:

Old Youtube Clients with old design:

Android Browser Options:

Firefox Option:

Limited to a selection of pre-approved extensions (Ublock Origin is included in said list); however, you can get around this by using Firefox Nightly and enabling developer settings, which allows you to add a custom list of extensions, which can include any extension for desktop Firefox, including things like SponsorBlock. (Credits to https://lemmy.world/u/Pr0phet )

Mull Option:

For TVs:

IOS:

For PCs:

Brave Option:

Firefox Option:

Windows:

Linux:

MAC OS:

Instance Sign-In support (No Google Login): Clipious, Libretube, Lighttube, Freetube

Google Login support: SmartTubeNext