You can tell Google to fsck themselves with their "payment policy" by simply installing Wireguard from F-Droid which I've been doing since version 1 https://news.slashdot.org/story/19/10/16/2215248/google-ejects-open-source-wireguard-from-play-store-over-donation-links

Also tons of other cool #android apps on F-Droid, all open-source, carefully checked for privacy violations and built from source.