Maybe Adguiard isn't for you. Have you tried NextDns? The only thing against it is no https filtering (maybe a positive depending on how you look at the issue) and lack of custom lists but the lists available are good. 300,000 free queries a month for the free plan which is plenty. I'm looking forward to BF deals to see if they offer a discount for their pro plan.
I am not sure if you are talking to me or not, but I have not tried NextDNS yet because of the limit for the free version & because I usually use the free Adguard DNS Public Default servers which have no limit in my router & on Android et cetera; but thank you for sharing that.
I am trying out Adguard For Windows for the first time now that I have 9 lifetime licenses that I bought for under $30, you can not beat that kind of deal, I do not have to have it, but I was curious to test it out for the first time now that I finally bought it & can use it for life whenever I want.
Furthermore, I have used Adguard's free products off and on for years, like I do with a variety of free things, trying to find the best free options available to me at any given time that I can also recommend to others; as I try to keep my layered security setup up-to-date & balanced for current threats.
uBlock Origin in the web browser & Brave Browser's built-in filtering are still the best that I have used so far, with fewer problems, better filters enabled on default, and easier to use than Adguard; and Malwarebytes Browser Guard, Quad9 DNS & CleanBrowsing DNS, et cetera are all better at blocking malware / grayware websites than Adguard.
Adguard products are in third place for me in those areas, so I check on them from time to time to see its progress, report issues, et cetera.