Hello from my hospital bed.
I’m thinking you normally have two issues of capacity and performance.
So ensure you have an SD slot, you’ll always have some media lower performance needs which you can move to SD and preserve your SSD for performance needs. So apps data on SSD media on SD.
That way you can buy in the future another or larger SD and swap them around.
Sweet spot of SD is around 200GB, buy one then later buy another name swap them so you always have capacity. Then a smaller SSD will last you a long time.
I have a 6 year old laptop and has I think 200GB SSD but I swap out 2 128GB SD and it’s working approach.
SD investment if you buy infrequently and buy larger sweet spot are rarely bad investments. You can use them later in life as backups, 2nd copies, you store in another places.