You can't have fun with this game EVEN if you pay thousands and developer encourage toxic environment by removing team rewards and focusing all rewards on kills.
The game has terrible in-game economy, multi-years-long grind time to top tier, and its event will consume 8 hours of your precious time, every day, without giving you any good rewards. Some times they DECEIVE you by making the reward look exceptionally good during preview, then nerf it when players finally get it.
The developer is extremely greedy: they claimed their statistic shows 20% of all registered players had ever paid and it is NOT enough, while industry average is single digit.
I played since 2014, it was most fun back in 2013 and 2014. 2015-2018 is the decline of War Thunder but it remained fun back then, in-game rewards were numerous. The reason of player loss is primarily due to lack of end game content and rewards was generous, causing player having nothing to do but keep on fighting each other after they grinded the tech tree they wanted.
Starting 2019 Gaijin had been constantly reducing in-game currency rewards and lengthen grind time, causing players unable to progress the tech tree nor repair their vehicle, unless player pays for premium account or vehicle.
In 2023, even premium players can no barely afford repair cost, but Gaijin is not satisfied, they want to further reduce the reward and lengthen grind time.
In 2018, before the reward nerf, the grind time to complete the largest tech tree in the game is about 100-200 hours depending on skill. Right now it is somewhere around 1000 to 10000 hours, since Gaijin removed team work bonus, 0 kill = 0 rewards, even if you are the MVP team player. This encouraged kill stealing and contributed toxic gaming environment.