I think I’ve mentioned this before but I highly recommend Adguard for ad blocking - https://adguard.com/en/welcome.html.
I bought a three device “lifetime” licence years ago and it has transformed internet usage on Windows and Mac. Filters are regularly updated so it keeps up with vendors attempts to circumvent blocking and works across apps as well as browsers as is not just a simple browser extension.
iOS is still a mixed bag though so probably not worth it if that is your main device. It works as well as anything does on iOS but due to limitations of that OS it can’t block all YT ads in the YT app or in browsers - you need to view the YT videos in the Adguard IOS app to avoid all ads - this is the main reason I still browse on a laptop rather than an iPad. iOS is a PITA and I’m not a fan of it (or Android!).
Adguard is “paid for” and not free which will put off many, but in my experience the small cost has been well worth while.
In the interests of playing devils advocate, worth remembering that there is a cost to providing YT and so there is some justification for Google embedding ads - especially if you are using it to host and distribute your content. Remember the old adage - if you are not paying for the product, then you are the product. YT users monetising their own content with ads is a whole other argument!
There is over 30,000 hours of video uploaded every hour to YT that all needs hosted, indexed and distributed which much come at colossal cost. You have two moral options - pay the Google subscription or watch the ads. Or go down the (arguably) immoral route of bypassing the ads. I have and still sleep well. :)