In blender for example you receive prioritized support when you sponsor them.
There are also various rewards (like voting on features, exclusive access to discord channels, having a sponsorship section on the website that acts as something like an ad).
There are various guides for this. but that’s the shortened version.
Maybe a survey can disprove my opinion. but i would argue the option of having ads plus paying for the ability to remove ads is something most users would accept (even if there is a vocal minority). especially if you explain that researching and developing some forms of content (documentaries, video courses, investigative journalism) can take dozen of hours and is not feasible to do without getting paid when aiming for the highest quality.
That could be better then just restricting videos (mitra could also be a open source alternative to patreon).