The difference is that there is less noise from other users as it is limited to Mullvad subscribers, and there is presumably a smaller user base.
Otherwise, there is probably little to no difference, considering that Searxes are not used by many in the same vein.
However, self-hosting is the equivalent of directly using the search engine under your own IP, just without javascript. There is no noise from other users looking up unrelated queries.
The difference is that there is less noise from other users as it is limited to Mullvad subscribers, and there is presumably a smaller user base.
Otherwise, there is probably little to no difference, considering that Searxes are not used by many in the same vein.
However, self-hosting is the equivalent of directly using the search engine under your own IP, just without javascript. There is no noise from other users looking up unrelated queries.