Short answer: Cassette Beasts cheats being made within the foreseeable future is as likely as you winning the top prize of the lottery twice 6 years apart.
Long answer (and I mean REALLY LONG):
There are no cheats for Cassette Beasts for 4 major reasons:
1.) The game is heavily scripted, is extremely modular, and uses 'objects' with 'containers' for everything used by the game - these features were chosen to prevent cheating online specifically; the scripting means that even moving one pixel, or even 1 thing moving one pixel is a command that needs executed. To counteract this and make sure that there isn't a TON of lag (which, if you play on a pre-OLED Switch, you'll see they failed on that front spectacularly, but I digress), they load and unload everything on the fly; something is loaded into RAM somewhere, is used once (just one change to a value is counted as 'used'), then stored in a register and unloaded from RAM as soon as it's used. This results in a lot of flickering, as you can see whenever a lot of enemies are moving at once, even on OLED.
The second issue, and the biggest reason why cheats are nearly impossible to nail down, is the fact that the game is one of very few non-Nintendo-developed games that uses full ASLR capabilities. ASLR is like DMA -- LONG DESCRIPTION INCOMING, SKIP IF YOU ALREADY KNOW WHAT DMA IS OR AREN'T CURIOUS ABOUT IT'S USAGE IN VIDEO GAME HISTORY -- (dynamic memory addressing, which was first used on a Nintendo system with the GBA, first with Metroid Fusion, and with Sony as early as the first Playstation; for some reason, Microsoft didn't have DMA in the original XBOX, but even so, hackers chose to use 'trainers' (essentially cheats in the form of a 'script', that runs by hooking a game function, runs immediately, then goes back to regular play until the hooked game function is run again, essentially a code cave) instead of a full-featured cheat system, which baffles me to this day) -- LONG DESCRIPTION OVER -- on steroids, essentially randomizing everything the game or Switch itself does with memory, by using the stack pointer relentlessly.
Even though all of this is able to be worked around by disassembling and documenting all of the game code in IDA Pro on Windows, there is another problem: Cassette Beasts is a game that receives continuous updates with zero pre warning from developers on when they will drop. Considering the irregularness at which game updates happen, taking the months of time necessary for someone relatively experienced in ARM assembly and IDA to fully understand the game code enough to find cheats for the game is infeasible due to the risk of an update dropping while being less than halfway done and 99% of players wanting cheats updating to that version before the cheats are made, either due to lack of knowedge of the cheats being made or due to impatience with progress in general.
Now, some game hacking wizard with the ability to fully document the code in a few weeks could come by and decide to do the job, whether for free or on commission. This would require both of 2 things: first, this hacker would either a.) be in a country where they cannot be extradited for copyright infringement in the case of possible legal action from the game devs once the floodgates open and people start using these cheats online, or b.) have nothing or little to lose from, such a criminal case. Second, the hacker would have to have no moral compass regarding cheats being used online in a popular game, either due to not ever playing games online or just not liking the game in general.
All of these together make it pretty much impossible to create cheats for the game while the game is still being worked on. And considering the desire of the game devs to build upon the game and the amount of ideas they have, that could take anywhere between 7 months to 14 years, dependent upon both the game studio's whims and the longevity of online functions of the Switch console. So, yeah, cheats aren't happening for this game.
tl;dr
Don't bother, play another game if you absolutely must have cheats. Cheats are extremely unlikely. Read the whole post before you argue.