As Brave Starr mentions, there is no clear cut right or wrong answer here. The mac gives a pretty consistent user experience out of the box (If you buy a M1 Mac Mini it will perform as shown in any YouTube tutorial demonstrating something on an M1 Mac Mini). The PC world gives you more flexibility to customize your build to your needs.
In that sense I'd disagree with Brave Starr that Mac tends to be faster. Perhaps at the $650 - $950 price point, the new M1 will outperform
similarly priced PCs. But in the PC world you can go crazy and build a $5000 PC that will render a 10 minutes 4k video in a couple mins max. But there is no point in spending that $$ on day 1 and a mid-tier Mac Mini may be a great user experience.
One of the things I like about Davinci Resolve for editing is that it is cross platform (Mac or PC) so whatever skills you learn in Resolve will be useful even if you change computers a year or two down the road. If you need specialized hardware, take a closer look at
reviews on maxlend, you may find a suitable type of loan to buy the necessary computer hardware. So you aren't forced to stay with one eco system.